A body thrown vertically upward returns to the Earth in 4 seconds.Free fall acceleration is g = 10 m/s?. Disregard the resistance of the air.1.(1) What was the initial velocity of the body?(2) What height did the body reach?A) 10 m/s; 10 m.B) 15 m/s; 15 m.C) 20 m/s; 20 mD) 25 m/s; 25 m.

Total time taken T = 4 sec free fall acceleration g = 10 m/s2 find: 1) Initial velocity of the…

A body thrown vertically upward returns to the Earth in 4 seconds. Free fall acceleration is g = 10 m/s². Disregard the resistance of the air. (1) What was the initial velocity of the body? (2) What height did the body reach?

A body thrown vertically upward returns to the Earth in 4 seconds. Free fall acceleration is g = 10 m/s². Disregard the resistance of the air. (1) What was the initial velocity of the body? (2) What height did the body reach?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 23CQ: If an object is thrown straight up and air resistance is negligible, then its speed when it returns...

See similar textbooks

Related questions

Q: If a bus travelling at 48 m/s is subjected to a steady deceleration of 5 m/s², how long will it take…

A: Given data : Deceleration = a Final velocity =…

Q: What is the average acceleration in m/s² of a moving car with an initial velocity of 12.5m/s and…

A: Given: time, t= 6minutes = 360 seconds initial velocity,u = 12.5m/s final velocity, v = 25m/s

Q: A ball is thrown upward at 4.6 m/s, from a height of 20 m above the ground. How fast (m/s) does…

A: Given data: Initial velocity = 4.6 m/s, upward Height = 20 m Required: Velocity of ball when hit…

Q: Consider an object experiencing an acceleration that decreases relative to time as below: a = (5.00…

A: Answer: Given value, acceleration(a) = (5.00 m/s2)e-0.100t

Q: If an object is thrown straight up and air resistance is negligible, then its speed when it returns…

Q: If the velocity, in feet per second, of a particle at time t, in seconds, is described by the…

A: Given value--- v(t)=9t3−27t+12 . We have to find--- acceleration when t = 4 sec ?

Q: If a bus travelling at 34 m/s is subjected to a steady deceleration of 8 m/s², how long will it take…

A: Given data: Initial velocity (Vi) = 34 m/s Acceleration (a) = -8 m/s2 Final velocity (Vf) = 0 m/s…

Q: If a bus travelling at 38 m/s is subjected to a steady deceleration of 6 m/s2, how long will it take…

A: We know thatv=u+atWherev=final velocityu=initial velocitya=accelerationt=time taken

Q: A ball is thrown straight up into the air. At the very top(maximum height) does the acceleration…

A: We knew that when the ball is thrown upward or downward the gravitational pull acts on it which…

Q: An airliner must reach a speed of 110 m/s to take off. If the available runway is 2.4 km and the…

A: According to Bartleby guidelines, I can answer the very first question in case of multiple…

Q: What is the maximum height attained by an object that is thrownstraight upward with an initial…

A: Given:Velocity of the object upward = 80 m/s

Q: What is the magnitude of the average acceleration of a skydiver who starting from rest, reaches a…

Q: A circus player throws his balls vertically upwards for a distance of 1 m. How high must he throw…

Q: Assuming the acceleration of gravity on earth is approximately 10 m/s^2, twelve seconds after being…

Q: A body is thrown vertically upward with an initial velocity of 9m/s. Assuming that it falls freely…

A: Let say body is thrown vertically upward with initial velocity v0= 9 m/sand let us consider the body…

Q: The world-record time for the 100 m dash is approximately 10 s. Given this, is it reasonable to…

A: “Since you have asked multiple questions which are not linked with each other, we will solve the…

Q: The driver of a car traveling at 110km/h slams on the brakes so that the car undergoes a constant…

A: Given: The initial speed of the car is 110 km/h. The time taken by the car is 4.5 s.

Q: You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. What is the…

A: The initial velocity of the baseball, vi = 12.3 m/s The acceleration due to gravity, g = 9.80 m/s2…

Q: a certain handgun with a muzzle velocity of 325 m/s is fired straight up. neglecting air resistance,…

A: Initial velocity of bullet (u) = 325 m/sTo find : time taken by the bullet to fall back to the head…

Q: A 5 kg object is shot straight up with an initial velocity of 1 m/s from the ground. If air…

Q: After jumping, a skydiver descends vertically towards the ground, with the parachute open, at a…

A: Here speed of skidiver is contant and it move 12.5m to reach the ground after dropping a coin∴ time…

Q: If a bus travelling at 18 m/s is subjected to a steady deceleration of 3 m/s?, how long will it take…

A: Given data :- initial velocity u = 18 m/s final velocity v = 0 m/s deceleration a = -3 m/s2

Q: What is the acceleration of a rock thrown straight upward on the way up? At the top of its flight?…

A: Acceleration is the change in velocity with respect to time.

Q: If a bus travelling at 24 m/s is subjected to a steady deceleration of 6 m/s2, how long will it take…

A: Given data : Final velocity = v Deceleration = a Initial velocity = u To find…

Q: If a cat travelling at 40 m/s is subjected to a steady deceleration of 6 m/s², how long will it take…

Q: If there were no air resistance, how long would it take afree-falling skydiver to fall from a plane…

Q: An aircraft has a lift-off speed of 12.1 km/h. If the aircraft's acceleration is constant, what…

A: The expression for the required time,

Q: Is it possible that the velocity of a body changes and its acceleration remains constant?

A: Acceleration is defined as the rate of change of velocity, the term constant acceleration means the…

Q: A ball is thrown upward and passes a powerline that is 15 ft off the ground at times 0.5 s on the…

A: Given: The height of the ball thrown upwards=15ft=4.5m time on the way up t1=0.5s time on the way…

Q: The velocity of a particle traveling in a straight line is given by v = (6t - 3t^2) m/s, where t is…

A: Given: The velocity of a particle traveling in a straight line is given by v = (6t - 3t^2) m/s.…

Q: If a bus travelling at 24 m/s is subjected to a steady deceleration of 2 m/s?, how long will it take…

A: Given: Intial Speed (u) = 24 m/s Acceleration (a) = - 2 m/s2 Final speed (V) = 0 m/s ....(rest)…

Q: The runway of an airport in Oman has been designed such that the lowest acceleration for a plane to…

A: Write the given values of the problem- Acceleration(a) a=14.3 ms2 speed(v) v=54.9 m/s u=0

Q: An elevator of height 1.5 m ascends with constant acceleration 2 m/s^2. When it crosses a platform,…

A: Given : Height of elevator(x) = 1.5 m Acceleration (a) = 2 m/s2 Velocity at some platform = 10 m/s

Q: A body is dropped freely from the roof of a building, traveling in the middle of the last second of…

A: Solution: Let (T) be the total fall of distance (h). As given the distance travelled in (T) the…

Q: If a car is traveling with a constant velocity, what can you say about its acceleration?

A: Given data: Velocity of car is constant.

Q: If a projectile is fired straight up at a speed of 30 m/s, the total time to return to its starting…

A: By using equation of motion. From point of projection to the top- most point. V = U + a.t Here, V =…

Q: A body falls vertically from the height h = 45 metres with its initial velocity equal to zero. What…

A: Given data: The initial velocity is u=0 m/s. The vertical height is h=45 m.

Q: A ball is thrown straight upward with an initial speed of 34 m/s. Assuming no air resistance, how…

A: Given data: Initial velocity (v0) = 34 m/s, straight upward Air resistance is negligible Required:…

Q: If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s, how long will it take…

Q: An aircraft has a lift-off speed of 12.1 km/h. If the aircraft's acceleration is constant, what…

Q: A engineer was accidentally thrown(downwards) overboard at an initial velocity of 6m.sand was in…

Q: An aircraft has a lift-off speed of 13.2 km/h. If the aircraft's acceleration is constant, what…

A: The minimum constant acceleration of aircraft require to be airborne after a takeoff run of 23.6m is

Q: A coin was tossed vertically straight upward with initial velocity 1.5 m/s. As the coin reaches…

A: Given data: Initial velocity, u=1.5 m/s

Q: The body, with an initial speed of 2 m/s, began to slide along an inclined plane. For l0s, it passes…

Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

A body thrown vertically upward returns to the Earth in 4 seconds.
Free fall acceleration is g = 10 m/s?. Disregard the resistance of the air.
1.
(1) What was the initial velocity of the body?
(2) What height did the body reach?
A) 10 m/s; 10 m.
B) 15 m/s; 15 m.
C) 20 m/s; 20 m
D) 25 m/s; 25 m.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

If an object is thrown straight up and air resistance is negligible, then its speed when it returns to the starting point is the same as when it was released. If air resistance were not negligible, how would its speed upon return compare with its initial speed? How would the maximum height to which it rises be affected?
A 3.20 kg toy rocket is launched from its platform and reaches a height of 253 m after 3.70 s. If the rocket motor only produced an upward acceleration for the first 1.00 s before running out of fuel, what was that initial upward acceleration? Neglect the effect of air resistance.
An rock is thrown straight up with an initial velocity of 18.5 m/s. What maximum height will the rock reach before starting to fall downward? (Take acceleration due to gravity as 9.80 m/s2.)
A stone is thrown with an initial upward velocity of 7.0 m/s and experiences negligible airresistance. If we take upward as the positive direction, what is the velocity of the stone after0.50 s? ( take g= 10 m/s2)
An object is thrown upwards with a speed of 14 m/s. How long does it take to reach a height of 5.0 m above the projection point while descending? Neglect air resistance.
A kid in a wagon rolls from rest down a hill and reaches the bottom at 12 m/s. On the next run she gets a push and starts down at 5.0 m/s. At what speed does she now arrive at the bottom? (Hint: If you think it’s 17 m/s, think again!) 7 m/s 12 m/s 13 m/s 17 m/s
The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows down uniformly with acceleration −5.85 m/s2 for 4.20 s, making skid marks 66.4 m long that end at the tree. With what speed does the truck then strike the tree?
The acceleration due to gravity on the moon is 1.67 m/s2. If a person can throw a stone 12.0 m straight upward on the earth, how high should the person be able to throw a stone on the moon? Assume that the throwing speeds are the same in the two cases.
An astronaut on a strange planet finds that he can jump a maximum horizontal distance of 16.0 m if his initial speed is 2.60 m/s. What is the free-fall acceleration on the planet? (Ignore air resistance.)
You throw a baseball directly upward at time t=0 at an initial speed of 12.3 m/s. What is the maximum height the ball reaches above where it leaves your hand? Ignore air resistance and take ?=9.80 m/s2.
A bullet shot straight up returns to its starting point in 10 s. What is the initial speed of the bullet, assuming negligible air resistance? 9.8 m/s 49 m/s 98 m/s 25 m/s
On average, froghopper insects have a mass of 12.7 mg and jump to a height of 473 mm. The takeoff velocity is achieved as the little critter extends its legs over a distance of approximately 2.00 mm. Assume that the +?-direction is upward, and assume a vertical jump with constant acceleration. What is the froghopper's acceleration ?jump during the jump (the jump itself, not the time in the air)? ?jump= m/s2 During the jump itself, how much time ? are the froghopper's feet in contact with the ground? ?= s What force ? does the ground exert on the froghopper during the jump itself? Express your answer in millinewtons. ?= mN