Question

Exercis
Multiple Choice Questions
LEVEL-1
1. The displacement-time graph for two particles A
and B are straight lines inclined at angles of 30°
and 60° with the time axis. The ratio of velocities
VA: Up is
(a) 1:2
(b) 1.3
(c) 13:1
(d) 1:3​

Answer 1

Answer:

The answer is D) 1:3

Explanation:

Slope of d-t graph is dx/dt which is velocity .....

dx/dt is tan theta.....

case 1. ....V1 =tan 30°=1/3^1/2

case 2.......V2 =tan 60°=3^1/2

V1/V2=1/3.....ANSWER