1) A toy car is traveling at 1.00 m/s in a
straight line along a ramp in a spaceship. If it speeds up to 2.50 m/s in a time of
0.50 s, what is the magnitude of its average acceleration.
2) A car can screech to a straight line
stop from 96.54 km/h in about 3.7 s. Compute the magnitude of its acceleration,
assuming it to be constant.
3) A bicyclist pedaling along a straight
road at 25.0 km/h uniformly accelerates at 3.00 m/s2 for 3.00 s. Find her
4) A bullet fired from a 38-caliber
handgun with a 0.152 m barrel attains a muzzle speed of 330 m/s. Assuming a constant
acceleration, how much time does it take the bullet to travel down the barrel? Use
three(3) significant digits.
5) Cheetah can reach speeds up to 113
km/h. Starting from rest, one goes to 72 km/h in 2.0 s.
a) Compute the cheetah's maximum acceleration, assuming it to be
b) What minimum distance is required for the cheetah to go from
rest to 17.9 m/s?
6) Assume your reaction time is 0.50 s and
the acceleration of your car is -8.2 m/s2. What is the no-skid stopping
distance when the car's speed is initially 26.8 m/s?
7) A ball is dropped from a 50 m building.
How far from the ground will the ball be after 2.5 s. (ignore air