a. Particle P moves in a straight line. Starting from rest, P moves with constant acceleration for
Question:
a. Particle P moves in a straight line. Starting from rest, P moves with constant acceleration for 30 seconds after which it moves with constant velocity, k ms-1, for 90 seconds. P then moves with constant deceleration until it comes to rest; the magnitude of the deceleration is twice the magnitude of the initial acceleration.
i. Use the information to complete the velocity-time graph.
ii. Given that the particle travels 450 metres while it is accelerating, find the value of k and the acceleration of the particle.
b. A body Q moves in a straight line such that, t seconds after passing a fixed-point, its acceleration, a ms-2, is given by a = 3t2 + 6. When t = 0, the velocity of the body is 5 ms-1. Find the velocity when t = 3.
Step by Step Answer:
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton