Question: A 7 0 kg ( = 1 5 4 l b s ) student doing pushups exerts a force of 6 8 6 N towards

A 70 kg (=154lbs) student doing pushups exerts a force of 686 N towards the ground with their arms. Given this situation, which of the following must be true? You must select all true answers and no false answers to receive credit.
The ground exerts a force of 686 N on the student
The ground will move with an acceleration of 9.8ms
The direction of the force the ground exerts on the student will be downwards
The direction of the force the ground exerts on the student will be upwards
Some of the energy the student uses to exert the force will be converted to heat.
The ground will not exert a force on the student in any direction
A 7 0 kg ( = 1 5 4 l b s ) student doing pushups

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