CBSE Class 9 Answered
A bus moving along a straight line at undergoes an accelaration of .What will be its speed after 2 seconds?
Asked by deeptisingh25 | 29 Jun, 2014, 03:36: PM
Expert Answer
To find the distance travelled,
v2 = u2 + 2 a s
(28)2 = (20)2 + 2 x 4 x s
784 = 400 + 8 s
784 - 400 = 8 s
8 s = 384
s=48 m
Calculating speed travelled after 2 seconds.
= 24 m/s
Answered by Faiza Lambe | 30 Jun, 2014, 11:44: AM
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