Need
1. a 2-kg toy car accelerates from 0 to 5 m/s.
a. 25 joules of work is done...
Need
1. a 2-kg toy car accelerates from 0 to 5 m/s.
a. 25 joules of work is done by the object.
b. 25 joules of work is done on the object.
c. 75 joules of work is done by the car.
d. 75 joules of work is done on the car.
e. no work is done on or by the object.
2. a 2-kg toy car originally moving at 5 m/s is brought to rest.
a. 25 joules of work is done by the object.
b. 25 joules of work is done on the object.
c. 75 joules of work is done by the car.
d. 75 joules of work is done on the car.
e. no work is done on or by the object.
3. a 2 kg toy car is held at a height of 3.75 m above the floor.
a. 25 joules of work is done by the object.
b. 25 joules of work is done on the object.
c. 75 joules of work is done by the car.
d. 75 joules of work is done on the car.
e. no work is done on or by the object.
4. a 2-kg toy car accelerates from 5 to 10 m/s.
a. 25 joules of work is done by the object.
b. 25 joules of work is done on the object.
c. 75 joules of work is done by the car.
d. 75 joules of work is done on the car.
e. no work is done on or by the object.
5. a 2-kg toy car accelerates from 10 to 5 m/s.
a. 25 joules of work is done by the object.
b. 25 joules of work is done on the object.
c. 75 joules of work is done by the car.
d. 75 joules of work is done on the car.
e. no work is done on or by the object.
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