1 point 2A student pushes a box of books with a force of 10 N and moves it
200cm. What work have they done? Use the equation: work done (J) =
force (N) x distance (m)
a) 2100
b) 1903
c) 20
d) 2000 J

d

Explanation:

You multiply the force used by the distance moved to get

the work done.

10N ×200cm

2000J

Option d

Explanation:

2000 J is correct answer

pe = weightxheight = 2000x1000=2,000,000joules

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.