A 310-N child is in a swing that is attached to a pair of ropes 2.10 m long. Find the gravitational potential energy of the child–Earth system relative to the child's lowest position at the following times.

Explanation:

Given that,

Force acting on the child, F = 310 N

Length of the ropes, d = 2.1 m

We need to find the gravitational potential energy of the child–Earth system relative to the child's lowest position when the ropes are horizontal. The potential energy is simply given by :

Hence, this is the required solution.

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation: