Question

A particle P starts from rest at the point A at time t = 0, where t is in seconds, and moves in a straight
line with constant acceleration a ms^ -2 for 10s, for 10 <=t=< 20, P continues to move along the line
with velocity vms^-1, where v = 800/t^2 - 2
(1) the speed of P when t = 10, and the value of a
(ii) the value of t for which the acceleration of P is a ms^-2?
() the displacement of P from A when t = 20​

Answer 1

Step-by-step explanation:

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