Kinematics Question 217

Question: The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane 9.8 m long (angle of inclination it’s 30o ) it’s [JIPMER 1999]

Options:

A) 12sec

B) 2 sec

C) 4 sec

D) 1 sec

Show Answer

Answer:

Correct Answer: B

Solution:

For one dimensional motion along a plane S=ut+12at2
9.8=O+12

gsin30ot2

therefore t=2sec



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