An experiment invilves three charges objects: A, B, and C. Object A repels object B and attracts onject C. object C ir repelled
1 answer:
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This is a conservation of momentum problem! Here's how to do it:
Answer:
K = 960 J
Explanation:
Given that,
Mass of a child = 20 kg
Mass of a sled = 10 kg
Speed of child on sled = 8 m/s
We need to find the kinetic energy of the sled with the child.
The total mass of child and the sled = 20 kg + 10 kg
= 30 kg
The formula for the kinetic energy of an object is given by :
Hence, the kinetic energy of the sled with the child is 960 J.