A particle of mass 3kg moving along a straight line under the action of a F N, covers a line distance, d, at time, t, such that \(d = t^2 + 3t\). Find the m...

Assessment: WAEC SSCE - Further Mathematics - 2022 (Objective) Subject: Further Mathematics

Question 1 Report

A particle of mass 3kg moving along a straight line under the action of a F N, covers a line distance, d, at time, t, such that \(d = t^2 + 3t\). Find the magnitude of F at time t.

Answer Details

F = m * a

d = t2
 + 3t.

a = d2ddt2

d[d]dt = 2t + 3

d2ddt2 = 2m/s2

a = 2m/s2


F = m * a


F = 3 × 2 = 6N 

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