Physics - NLM Question with Solution | TestHub
PhysicsNLMMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice
A 10 kg stone is suspended with a rope of breaking strength 30 kg-wt. The minimum time in which the stone can be raised through a height 10 m starting from rest is
(Taking g = 10 m/s2)
Options:
Answer:
B
Solution:
Maximum tension in the string T = mg
= 30 x 10
= 300 N
T - mg = ma
From the figure
300 - 10 x 10 = 10a
a = 20 m s-2
Thus, the maximum acceleration with which the stone can be raised is 20 m s-2.
Given, s = 10 m
and u = 0
t = 1 s
Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:Miscellaneous
⏱ 2mℹ️ Source: PYQ_2020
Doubts & Discussion
Loading discussions...
