A ball is thrown upward from the ground with a speed of 40ft/sec; at the same instant another ball is dropped (from rest) from a height of 100ft. Show that they strike the ground at the same time

Q: Rain drops falling under gravity do not acquire very high velocity. Why?

A: This happens due to terminal velocity. When a rain drop falls under gravity through a viscous medium…

Q: A stone is thrown vertically upward with a velocity of 40 feet per second from the top of a tower…

A: Answer:-  Given  When the stone is thrown vertically upwards.  Initial velocity (u) = 40 feet per…

Q: A stone is thrown vertically upward from the ground with a speed of 30 meters per second. Calculate…

A: Given data: Initial speed u =30 m/s Acceleration due to gravity a=-9.8 m/s2 (acting upwards)

Q: A student jumps off of a cliff into a river 25.9 m below. If the student landed 20.7 m horizontally…

A: Given, Height, h= 25.9 m, and distance, x=20.7 m.

Q: If a car is moving at 90 km/h and it rounds a corner, also at 90 km/h, does it maintain a constant…

A: Speed is a scalar quantity. It has magnitude only, no any direction. Constant speed does not always…

Q: When a ball is thrown straight up, by how much does its speed change each second? Neglect air…

A: In the upward motion, the acceleration due to gravity is given as, a = -g According to Newton’s…

Q: In a movie, the hero jumps straight down from a bridge onto a small boat that continues to move with…

A:

Q: You take a running leap of a high-diving platform. You were running at 2.8 m/s and hit the water…

A:

Q: A ball thrown vertically upward with a speed of _____ m/s will be in the air for a total of 4.5…

A:

Q: A stone is thrown in such a manner that it would just hit a bird at the top of a tree and…

A: Solution-

Q: Oscar can run 11 miles in 90 minutes,while candy can run 6 miles in 50 minutes.Who is the faster…

A:

Q: If a car is moving at 90km/h and it rounds a corner, also at 90km/h , does it maintain constant…

A: If the car rounds the corner at speed of 90 kmph in means the speed pf the car is constant because…

Q: Show that the average speed of a rabbit that runs a distance of 30 m in a time of 2 s is 15 m/s.

A: The expression for the average speed is,

Q: Show that acceleration at any instant does not depend upon velocity at any instant?

A:

Q: Will an object dropped at height h never change its direction?

A: Say an object of mass m is dropped from height h. As it was dropped, the initial velocity u=0 and…

Q: Does Velocity increases as an object falls?

A: When an object falls (towards the earth), it’s velocity increases with time.As we know, objects fall…

Q: A projectile is launched vertically at 100 m/s. If air resistance can be neglected, at what speed…

A: The projectile will return back to its initial level with the same velocity 100 m/s. The projectile…

Q: Show that average speed of a rabbit that turns a distance of 30m in a time of 2s is 15m/s?

A: Given information:The total distance travelled by the rabbit (s) = 30 mTotal time take (t) = 2 s

Q: What happens to its velocity when a coin is tossed upward while ascending? Its acceleration? (Ignore…

A: It is required to discuss the velocity of a coin tossed upwards and its acceleration while…

Q: If Michael Jordan has a vertical leap of 1.29 m, then what is his take off speed?

A: Given data: Vertical height (h) = 1.29 m Required: Take off speed (vi)

Q: A stone is thrown upward from the top of a tower 50 meters high. Its velocity in an upward direction…

A:

Q: Neglecting air resistance, the motion of an object moving vertically near 2 Earth’s surface is…

A: Write a given values of this question. g=9.8m/s2h=100mu=40m/s

Q: a stone is dropped froma a height of 3.0m. its speed after 1.0 seconds is

A: If a stone is dropped from a height, then the gravitational acceleration g = 9.81 m/s2. Its initial…

Q: A ball is dropped from the roof of a building 40 meters tall will hit the ground with a velocity of:

A: Given data The height of the building is given as s = 40 m. The initial velocity of the ball is…

Q: Which has greater deceleration, a bicycle slowing from 3 m/s to a stop in 6 seconds or a car slowing…

A: Given data: Initial speed of bicycle is, u=3 m/s. Final speed of bicycle is, v=0 m/s. Time interval…

Q: If two ball are released from the same height, where one falls from rest and the other is given a…

A:

Q: What is exhilaration of a rock thrown upward on the way up? At the top of his flight? On the way…

A: suppose there is no air friction, the rock is thrown upward direction and the earth will pull it…

Q: A baseball is dropped from a 20m high window of a skyscraper.. With what speed will it hit the…

A: Given data: -  The height of the window of a skyscraper is h = 20 m.

Q: A jet plane has a takeoff speed of ? = 75 m/s and can move along the runway at an average…

A:

Q: the velocity, acceleration, and speed

A:

Q: A ball is dropped from a height of 4m above the ground. The velocity of the ball when reaching the…

A: Option c is correct

Q: If a car is moving at 50mph and it rounds a corner, also at 50mph, does it maintain a constant…

A: Initial speed of car = 50 mph After taking a round at a corner, new speed of car = 50 mph

Q: Why do we disregard air resistance when calculating velocity?

A:

Q: A ball rolls off the edge of a table and hits the floor below. If the ball’s speed were somewhat…

A:

Q: If you climb a ladder and drop a ball from different heights, due to gravity, both balls -- one at…

A: At higher height, the ball drops down from the ladder. During the duration of the fall, the ball’s…

Q: What happens to its velocity when a coin is tossed upward while ascending? Its acceleration? (Ignore…

A: Equation of linear motion V= u + at  V= final. Velocity at time t  a = acceleration.  u= initial…

Q: A skydiver jumps from a helicopter hovering at high altitude. Neglecting air resistance, how fast…

A:

Q: what constant acceleration will bring an automobile traveling 60 miles per hour to rest in 160 feet?

A:

Q: When a coin is tossed upward, what happens to its velocity while ascending? Its acceleration?…

A:

Q: If a baseball is dropped from a skyscraper, what will its speed (velocity) be after 4.5 seconds…

A: let baseball is dropped with zero initial velocity u=0 since there is no air resistance a=g=9.8 m/s2…

Q: Calculate the final velocity of a car starting from rest, and accelerating for 10 seconds at 3.5…

A: initial velocity u = 0 m/s acceleration a = 3.5 m/52 time taken t = 10 s Let V be the final…