WAEC - Physics (2014 - No. 9)

A car starts from rest and covers a distance of 40m in 10s. Calculate the magnitude of its acceleration
0.25ms-2
0.80ms-2
3.20ms-2
4.00ms-2

Explanation

S = ut + \(\frac{1}{2} at^2\)

40 = 0 x 10 + \(\frac{1}{2}\) x a x 102

50a = 40

a = \(\frac{40}{50}\)

= 0.8ms-2

Comments (0)

Advertisement