Physics 1D Kinematics

Solve: 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/s/s

Solve: 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 d = 79.8 m

Solve: 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/s d = 406 m

Solve: 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/s

Solve: A tennis ball is thrown straight up with an initial speed of 22.5 m/s. It is caught at the same distance above the ground. a. How high does the ball rise? b. How long does the ball remain in the air?

a. d=25.8 m b. t=4.6 s

Solve: A car starts 200 m west of the town square and moves with a constant velocity of 15 m/s toward the east. Draw a graph that represents the motion of the car. a. Where will the car be 10 minutes later? b. When will the car reach the town square?

a. d=8800 m b. T=13.3 s

Solve: A brick is dropped from a high scaffold. a. What is its velocity after 4.0 s? b. How far does the brick fall during this time?

a. t=39.2 s b. d=78.4 m

Solve: A bag is dropped for a hovering helicopter. When the bag has fallen for 2.00 s, a. what is the bag's velocity? b. how far has the bag fallen?

a. v=19.6 m/s b. d=19.6 m

what does the velocity vs time graph show

acceleration

Solve: 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

Solve: 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

Solve: 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

Solve: A bike first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the total distance traveled by the bike?

d=33.8 m

Solve: 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

what does the position vs time graph show

velocity

an object that is thrown up will at some point have a.....

velocity of 0 m/s

Solve: A kangaroo is capable of jumping to a height of 2.62 m. Determine the takeoff speed of the kangaroo.

vi = 7.17 m/s