Question

A stone of 1kg is thrown with a velocity of 20ms-1 across the frozen surface of a lake and comes to rest after travelling a distance of 50m. What is the force of friction between the stone and the ice.

Answer 1

V²-U²/2S=A(RETARDATION DUE TO FORCE OF FRICTION)

400/100

4M/S²=A

FORCE OF FRICTION= 4N

Answer 2

Answer:

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