Name ________________________________________________ period _____
1. Work the following acceleration calculations:
a. A car accelerates from rest to 17 m/s in 8.3 seconds. What is its
acceleration?
2.048 m/s/s 2.0m/s/s
b. A toy car rolls down a ramp its speed at the top of the ramp is 14
cm/s and its speed at the bottom of the ramp is 100 cm/s, what is
its acceleration if the time elapsed is .02234 seconds.
c. A pitcher throws a ball at 90 mph. The ball starts from rest and
the pitcher’s throwing motion takes 0.023 seconds. What is the
acceleration of the ball?
A= 1750 m/s/s sig digs 1800m/s/s
d. A rifle bullet accelerates from rest to 1500 feet per second in the
barrel of a gun in 0.000017 seconds. What is the bullet’s
acceleration?
e. A rocket travels at 3,125 m/s and decelerates to 2,000. m/s in 7.3
seconds. What is the acceleration?
f.
A top fuel dragster accelerates from rest at 50 mph/s for 5
seconds what is its final speed?
g. A truck accelerates at 5 mph/s for 6 seconds. Assuming it started
from rest, what is its final speed?
h. Carl Lewis (fastest man alive) Runs the 100 meter dash. He starts
the race from rest, and reaches a top speed of 10.45 m/s/s. If his
acceleration is 13.05 m/s/s, what is the time it took to reach that
speed?
i.
A cart rolls down one hill and starts to roll up another hill. The cart
started up the hill with a speed of 23.1 m/s. How long will it roll up
the hill before it starts to roll back down? (assume the acceleration
is at 1.8234 m/s/s)
j.
What is the initial speed on an airplane that has an acceleration of
41.2 m/s/s, a final speed of 100.0 m/s and a time of 8.47 seconds?
k. What is the initial speed for a car to come to a complete stop if the
acceleration is -23.2 mph/s and takes 31.76 seconds to fully brake?