Kinematics Questions

A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m. Determine the acceleration of the bike.

a = 0.712 m/s2

A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.840 m. Determine the acceleration of the bullet (assume a uniform acceleration).

a = 1.62*105 m/s2

A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled.

a = 11.2 m/s/s and d = 79.8 m

A dragster accelerates to a speed of 112 m/s over a distance of 398 m. Determine the acceleration (assume uniform) of the dragster.

a = 15.8 m/s2

Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.83 seconds, then what is the acceleration and what is the distance that the sled travels?

a = 243 m/s d = 406 m

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car

a = 8.10 m/s^2

The driver of a car travelling at 65 km/h in an easterly direction, steps on the brakes and stops in 4.0 s. While braking, the average acceleration of the car (in m/s2) is

a= 4.5 m/s2 [W]

What is the acceleration of a truck travelling in a straight line at 28.5 m/s that is slowed down to 4.0 m/s in 6.00 s

a=-4.08 m/s2

If an object starts from rest and rolls down an inclined plane a distance of 2.1 m in 0.95 s, then the object's acceleration is

a=4.65 m/s2

A stone is dropped into a deep well and is heard to hit the water 3.41 s after being dropped. Determine the depth of the well.

d = -57.0 m (57.0 meters deep)

An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

d = 1720 m

A car traveling at 22.4 m/s skids to a stop in 2.55 s. Determine the skidding distance of the car (assume uniform acceleration).

d = 28.6 m

Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.60 seconds, what will be his final velocity and how far will he fall?

d = 33.1 m and vf = 25.5 m/s

An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this plane will be 65 m/s. Assuming this minimum acceleration, what is the minimum allowed length for the runway?

d = 704 m

An object moving at a velocity of 40.0 m/s slows down to 10.0 m/s with constant acceleration in 7.00 s. The displacement of the object during this time interval is

d=175 m

A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the surface of the moon.

t = 1.29 s

The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the deck to the street below.

t = 8.69 s

In still water, a person can paddle a canoe at 2.5 m/s. They wish to cross a river which flows at 5.5 m/s and is 120 m wide. If the person points the canoe directly across the river, then the time required to cross is

t=48 s

At the top of a 250 m cliff above a river, a hiker drops a 2.50 kg backpack over the edge. At what speed would the backpack impact the water?

v= 70.0 m/s

A kangaroo is capable of jumping to a height of 2.62 m. Determine the initial velocity of the kangaroo. *

vi = 7.17 m/s