A bob of mass of 0.18 kilograms is released from a height of
45 meters above the ground level. What is the value of the kinetic energy gained by the bob at the ground level?

a) 2.4 joules
b) 5.1 joules
c) 8.1 joules
d) 10.0 joules

Question

A bob of mass of 0.18 kilograms is released from a height of
45 meters above the ground level. What is the value of the kinetic energy gained by the bob at the ground level?

a) 2.4 joules
b) 5.1 joules
c) 8.1 joules
d) 10.0 joules

anonymous · Answer

same as the last question! if you do your own homework you might find yourself getting better at this stuff!!

anonymous · Answer

What equation do i use?

anonymous · Answer

conservation of energy. gain is kinetic energy (1/2mv^2) is equal to the loss of gravitational potential energy (mgh)