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Chapter 2 Review Worksheet |
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1) A person walks 15 m west and 20.0 m east. What is the displacement?
What is the distance wlaked?
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2) A bicyclist rides 10.0 km/h west and 20.0 km/h east. What is the
resultant velocity?
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3) How long does it take light traveling from the sun at 3.0
x 108 m/s to reach Jupiter, which is about 7.80 x 108
km away?
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4) A ball rolling at 4.0 m/s accelerates uniformly down a hill at
5.5 m/s2 for 6.0 seconds. What is the final velocity?
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5) A racing car traveling initially at 8.0 m/s accelerates
uniformly at 10.0 m/s2 for 5.0 s. How far does it
travel in this time?
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6) How fast does a car have to accelerate to go from 10.0
m/s to 30.0 m/s in 125 m?
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7) A baseball is hit straight up in the air with an initial
velocity of 38 m/s. How long does it stay in the air?
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8) A racing car travels 480 kilometers in 2.0 hours. Calculate the
car’s average speed in km/h and m/s.
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9) A gun is fired and the bullet is accelerated in the gun barrel,
which is 1.00 meters long. The bullet leaves the barrel with a
velocity of 600.0 m/s. calculate the acceleration of the bullet
while it is in the barrel.
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10) A ball is dropped from a roof and takes 3.0 s to reach the
ground,. Calculate the elevation of the roof above the ground
in meters. (neglect air resistance)
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11) An adult kangaroo can jump as high as 1.80 meters. With what initial
velocity must a kangaroo leave the ground to reach this maximum
height?
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12) A projectile is shot up with a velocity of 58.8 m/s. (Neglect
air friction) Calculate the velocity of the projectile 1.5 s
after firing.
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13) A balloon is rising at 29.4 m/s. A stone falls from the balloon
and reaches the ground in 20.0 s. How high is the balloon when
the stone is dropped?
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14) On a day when the speed of sound in air is 330 m/s, you shoot a
rifle at a distant metal target. The speed of the bullet is 500.0 m/s.
You hear the sound of the bullet striking the target just after 5.0 s
after firing the gun. Calculate the distance from you to the
target.
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15) A boy standing on a 19.6 meter tall bridge sees a motorboat
approaching the bridge at a constant speed. When the boat is 27 meters
from the bridge, the boy drops a stone to the water below. If the
stone strikes the water 3.0 meters in front of the bow of the boat, at
what speed is the boat traveling?
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