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JEE Main Physics Class 11 Motion in a Straight Line and Plane Part 2 Questions
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© examsnet.com
Question : 57
Total: 100
A man of
60
kg
is running on the road and suddenly jumps into a stationary trolly car of mass
120
kg
. Then, the trolly car starts moving with velocity
2
ms
−
1
. The velocity of the running man was _____
ms
−
1
, when he jumps into the car.
[28-Jun-2022-Shift-1]
Your Answer:
Validate
Solution:
Taking the system as man and trolley and using conservation of linear momentum.
60
×
v
=
(
60
+
120
)
×
2
⇒
v
=
6
m
∕
s
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