Review 1
Practice Problems
Make sure to enter your answers in the specified units .
1
grams is equal to how many kilograms?
2
What would be the weight in newtons (near the surface of the earth) of a man whose mass is grams?
3
A student who failed physics now has a janitorial job pushing a broom. If the force exerted on the handle is newtons, and the handle makes an angle of degrees with the horizontal, find the horizontal component of the force. Express your answer in newtons.
4
A car starts from rest and accelerates at m/s
2
. How far will it travel in seconds? Your answer should be in meters.
5
The cable supporting a kilogram elevator has a maximum strength of 22000 newtons. What is the maximum upward acceleration (in m/s
2
)it can give to the elevator without breaking? Hint: take upward as the positive direction.
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