A block of mass starts from rest with constant acceleration

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A block of mass

1\,\text{kg}

starts from rest with constant acceleration

a=4\,\text{m/s}^2

. Find the following. (1) Average power of the net force in the time interval from

t=0

t=2\,\text{s}

. (2) Instantaneous power of the net force at

t=4\,\text{s}