1. a student lifts a box of books that weighs 185 n. the box is
lifted 0.800 m. how much work does the student do on the box?
2. two students together exert a force of 825 n in pushing a
car 35 m.
a. how much work do they do on the car?
b. if the force were doubled, how much work would they do
pushing the car the same distance?
3. a 0.180-kg ball falls 2.5 m. how much work does the force of
gravity do on the ball?
4. a forklift raises a box 1.2 m doing 7.0 k) of work on it. what is
the mass of the box?
5. you and a friend each carry identical boxes to a room one floor
above you and down the hall. you choose to carry it first up the
stairs, then down the hall. your friend carries it down the hall,
then up another stairwell. who does more work?
pocket
an inclined
constant force at an angle you've learned that a force exerted in the
Answers: 3
Physics, 21.06.2019 18:30, Tierriny576
A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s
Answers: 3
1. a student lifts a box of books that weighs 185 n. the box is
lifted 0.800 m. how much work...
lifted 0.800 m. how much work...
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