Name:_________________________________
CHANGE IN SPEED
AND
ACCELERATION PRACTICE
DIRECTIONS:
Solve the following problems, making sure to label all values
and show all work.
1. What is the change in speed in a dog that begins its journey at a rate of 2m/s
and ends at 5 m/s? Is he speeding up or slowing down?
2. A car is travelling at 28.0 m/s. It applies its brakes, and it’s speed is now
10 m/s. What is its change in speed? Is it speeding up or slowing down?
3. A dove is released from rest and achieves a velocity of 4 m/s. What is its
change in velocity? Is it speeding up or slowing down?
4. A cheetah has a top speed of 28 m/s? What is the cheetah’s change in speed
if it goes from top speed and slows to 12 m/s? Is it speeding up or slowing
down?
5. A wind up toy starts from rest and accelerates. Its new speed is 4 m/s. What
is its change in speed? Is it speeding up or slowing down?
6. A skier accelerates from rest to a speed of 16 m/s over a 5 second time
interval. What is the acceleration of the skier?
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7. A train is travelling at 36.0 m/s. It applies its brakes, and begins to slow. If
the speed after 13 seconds is 8 m/s, what was its rate of acceleration?
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8. A hot air balloon is released from rest and achieves a velocity of 8 m/s after
30 seconds. What is its acceleration?
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9. A horse can reach a top speed of 20 m/s in 4 seconds? What is the horse’s
average acceleration?
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10. A dragster starts from rest and accelerates for 10 seconds at a rate of
35 m/s. What is its acceleration?
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