Year: 2017
Topic: Motion in a plane
Time :
1.
The x and y coordinates of the particle at any time are x = 5t − 2\(t^2 \) and y = 10t respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t = 2 s
(1). \(\displaystyle 5 \, \frac{m}{s^2}\)
(2). \(\displaystyle - 4 \, \frac{m}{s^2} \)
(3). \(\displaystyle -8 \, \frac{m}{s^2}\)
(4). \(0\)