Question

37. A bus moves over a straight level road with a
constant acceleration a. A boy in a bus drops a
ball outside. The acceleration of the ball with
respect to the bus and earth are respectively
(1) a and g
(2) a + g and g - a
(3) Va? +g2 and g
(4) Va? +g2 and a
(Haryana, Stage-1, 2016-17)​

Answer 1

Explanation:

Hello mate

let the bus move along the positive x axis

acceleration of bus = a

let the ball that is dropped follow on the negative y and negative x axis

it's velocity acceleratin would be = -ai^-gj^

relative motion would be

with respect to bus and earth

vab = vb - va

vab =( v+a)i^ + (g)j^

vab = (v+g2 )i^+(g)j^

so,

option (3) is the correct answer