A downhill skier accelerates from 20 m/s to 40 m/s in 4.5 seconds. What is their acceleration?

Q: The average speed of horse that gallops  a distance of 10KM in a time of 30 minuntes is?

A: The average speed is the ratio of the total distance travelled to the time taken for motion. It is…

Q: How much faster would someone reach their destination if they increased their average velocity from…

A: The final velocity, vf=60 mph The initial velocity, vi=50 mph The distance traveled, S=30 mile

Q: A roller coaster reaches a height of 41 m above the ground in its first hill. If a car starts from…

A: According to the law of conservation of energy, the kinetic energy is equals to the potential…

Q: What is the speed of a car that travels 200 meters in 25 seconds

A: (given) Distance (s) = 200 m       Time (t) = 25 s Speed of a car is                     = (Distance…

Q: If you drop a rock from a brigdge, how fast is it going in three seconds?  A: 3 meters B: 9.8 meters…

A: Initial velocity of rock is zero and acceleration due to gravity acts downward due to which rock…

Q: There were 2 boys standing on top of a bridge. The 1st boy drops a 1.5kg rock while the 2nd boy…

A: h=ut+0.5gt2

Q: A driver of a car hits its brakes and begins to decelerate. If the velocity changes from 60 m/s to…

A: Initial velocity u=60 msFinal velocity v=20 mstime t=6 secs

Q: . A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the cceleration?

A: Given  Initial speed u=0m/s Final speed v=200m/s time t=5s

Q: How fast would you have to jump off the ground in order to jump at least 10 meters in the air?

A: The change in potential energy of person during the jump must be equal to his change in kinetic…

Q: Johnny drives on a freeway at a constant speed of 100nmph and in a straight line, what is happening…

A: Acceleration is the rate of change of velocity.

Q: How fast is a dropped object moving after it falls for 4 s?

A: Given data:  Initial velocity (u) = 0 m/s Time (t) = 4 s  Required: Final velocity (v)

Q: What force is needed to accelerate a 1900 kg car at one-third of g?

A: given :- mass of car m=1900 kg  acceleration due to gravity=g= 9.8 m/s2  acceleration of car a=…

Q: car accelerates from 25 km/hr to 55 km/hr in 30 seconds. What is its acceleration?

A:

Q: If a car increases in velocity from +5 m/s to +15 m/s in three seconds, what is its acceleration?

A: Given value--- initial velocity = 5 m/sec. final velocity = 15 m/sec. time t = 3 second. We have…

Q: What is the velocity of a penguin that swims 90 meters through the water in 12 minutes?

A: Solution:  Use the formula for velocity:  V = distance/time  Now,

Q: What is the acceleration of a car that is going 100 m/s and stops in 5 seconds?

A: Given data:  Initial velocity (Vi) = 100 m/s Final velocity (Vf) = 0 m/s, stop Time (t) = 5 s…

Q: What is the acceleration of a person who goes from 4.3 m/s to rest in 2 seconds?

A: given: initial velocity u = 4.3 m/s final velocity v =0 m/s time = 2 sec

Q: A motorcycle traveling along a straight road increases its speed from 30.6 ft/s to 50.6 ft/s in a…

A:

Q: A car from rest takes 5 seconds to travel a distance of 30 feet. How long will it take for the car…

A:

Q: If you could jump with an initial speed at 5 m/a, how many jumps would you need to reach the top of…

A:

Q: An object, starting from rest, is given an acceleration of 16 feet per second? for 3 seconds. What…

A: Given, Accleration a  =16 ft/s  Time t = 3 sec   We know the expression for first equation of…

Q: What is the acceleration on a 45.7kg object that is maintaining a constant speed of 1.2m/s?

A:

Q: If a skydiver jumps from a plane and free falls, what is their velocity after 20 seconds?

A:

Q: What is the acceleration of a car that starts from rest and travels 20 meters in 9 seconds?

A:

Q: A boy drives 6 miles, accelerating uniformly from rest to 70 mph. How long does it take for him to…

A:

Q: What is the acceleration of a car that goes from 10 m/s to 50 m/s in 8.3 seconds?

A: Given data: Initial velocity (v0) = 10 m/s Final velocity (v) = 50 m/s Time (t) = 8.3 s Required:…

Q: a car slows down from  45 m/s to 13m/s in 4 s. What is the acceleration.

A: Given that a car slows down from  45 m/s to 13m/s in 4 sec i.e.initial velocity V1 =45 m/secfinal…

Q: A car backs up with an acceleration of 3.5m/s² [S]. If its final velocity after 2.0s is 9.0 m/s [S],…

A: acceleration,a=-3.5 ms2final velocity,v=9 mstime,t=2sinitial velocity,u=?

Q: A boy travels with a speed of 10 ms

A: Given Speed of boy=10 ms-1Time Taken=30 min

Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/s when it hits the ground,…

A: The kinetic energy of the rock just before it hits the ground will be KE=12mv2=126kg5m/s2=75J

Q: What is the speed of a runner who goes around the entire oval of the track a distance of 400 meters…

A: The speed of the runner is, v=dt

Q: What is the velocity of a car moving north that covers 65 miles in 2 hours?

A:

Q: If you shoot a 10 kg cannonball straight it reaches a height of 600 meters, what was the velocity of…

A:

Q: If a car goes from 0 to 75 mph in 5 seconds with constant acceleration, what is that acceleration?

A:

Q: a truck traveling at 35 m/s slows down to 30 m/s over a distance of 13 meters. What is the…

A: Answer:- Given Final Velocity of a truck (V) = 30 m/s  Initial velocity of a truck (u) = 35 m/s…

Q: What is the acceleration of a car that moves from a speed of 2.5 m/s to a speed of 25 m/s during a…

A: Acceleration of the body is the change in velocity over the change in time. a = ∆v/∆t  where, a =…

Q: In a swimming race, Briana swam 50 meters in 40 seconds.  What is her average speed?

A: The given data are: d=50 mt=40 s Here, d denotes the distance and t denotes the time.

Q: A rock is thrown straight down from a cliff at a velocity of 3.7 m/s and hits the ground below after…

A: Given data:  Initial velocity (Vi) = 3.7 m/s, downward  Time (t) = 1.8 seconds Acceleration due to…

Q: A car, initially traveling at 16.7 miles per hour, comes to rest in 3.3 s. What was its acceleration…

A: Given data:  Initial velocity (u) = 16.7 mi/h Time (t) = 3.3 s Final velocity (v) = 0 m/s Required:…

Q: If a cheetah can reach his top speed of 93 km/h in just 3 seconds from rest, what is its…

A:

Q: On a highway trip, joe drives the first 25 miles at 55 mph, and the next 15 miles at 70 mph. What is…

A: Given, on a highway trip, joe drives the first d1=25 miles at v1= 55 mph, and the next d2=15 miles…

Q: a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be ot…

A:

Q: The zombie then flies backward with an initial velocity of 30 m/s and slides to a stop on the…

A:

Q: A toy car is pushed twice. The first time, it moves 8.1 meters in 4 seconds. The second time, it…

A: Data given, First push distance (d1) = 8.1 m time (t1) = 4 sec 2nd push  distance (d2) = 7.3 m time…

Q: When the driver applies the brakes of a light truck traveling 10 km/h, it skids 3 m before stopping.…

A: GIVEN THAT FOR FIRST CASE , u =10Km/h⇒U=10×518=5018=2.78m/s , AND S=3 m FOR THE SECOND CASE u=…

Q: The velocity of a 40 kg object increases from 20 m/s to 30 m/s in 2 seconds. What is the…

A: The mass of the object, m= 40 kg   The initial velocity of the object, vi=20 m/s   The final…

Q: A ball rolls to a stop after 9.5 s. If it hada starting velocity of 8.1m/s, what is the deceleration…

A: Given: The intial velocity of the object is 8.1 m/s. The final velocity of the object is 0 m/s. The…

Q: A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope,…

A: Initial speed of roller coaster car = 4 m/sfinal speed of car = 22 m/sTime taken = 3 seconds

Q: What is the acceleration of a car that increases its velocity from 0 to 100 km/h in 10 s?

A:

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.