rashmi was playing on a swing in a park. To increase her speed when her swing was at its lowest position during its oscillations she pushed the ground hard with her feet.
1. what type of energy was possessed by Rashmi while swinging? on what factors does it depend?
2. why did the swing's speed increase on pushing the ground harder with feet?
Answers
if u like comment thanks
(1) , the energy associated with the simple pendulum are kinetic energy and potential energy At the extreme position of the swing, she will have potential energy. At the mean position of swing, she will have kinetic energy.. These energies keep interchanging during the motion of the swing. The kinetic energy depends on the velocity of the mass so it will be greatest at the bottom, and zero at the top. The gravitational potential energy depends on the height. It will be maximum at the top of the swing and minimum at the bottom. (2) On pushing the ground harder with feet, force is applied on the swing. As a result, swing starts moving with greater speed and hence swing's speed increases.
if u like comment thanks
(1) , the energy associated with the simple pendulum are kinetic energy and potential energy At the extreme position of the swing, she will have potential energy. At the mean position of swing, she will have kinetic energy.. These energies keep interchanging during the motion of the swing. The kinetic energy depends on the velocity of the mass so it will be greatest at the bottom, and zero at the top. The gravitational potential energy depends on the height. It will be maximum at the top of the swing and minimum at the bottom. (2) On pushing the ground harder with feet, force is applied on the swing. As a result, swing starts moving with greater speed and hence swing's speed increases.
if u like comment thanks