Work and energy sub hw

Work and energy sub hw - Transcript

Name Date Pd
This worksheet is to be done INDIVIDUALLY It will be collected at the end of the period Show all work
1 There are three blocks of different masses 8 kg 20 kg and 50 kg If each block is lifted 2 m a find the work done by lifting each block and b the amount of power produced if it takes 3 seconds to lift each block
2 Find the work done be each force acting on the block in the figure below The block is pushed 120 cm up the incline F1 10 N F2 20 N and F3 35 N Hint Remember the work formula and to convert to standard units

3 A 3 kg ball is released from point A Calculate the potential energy kinetic energy and velocity at points A B C and D

40
F1
F2
F3
25 m
18 m
30 m
D
C
B
A