# physics

When timmy is sitting at rest he have 40j of GPE then his dad gives timmy a big push when his dad let go timmy has 60j of GPE and 120j KE. How much work did timmy dad do when he pushed timmy?

1. 👍 0
2. 👎 0
3. 👁 201
1. (60+120) -40 = 140 J

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2. 👎 0

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