Assertion (A) : No work is done by gravitational force if a body moves along a horizontal surface. Reason (R) : In horizontal motion, angle between gravity and displacement is 900.
Both (A) and (R) are true and (R) is not the correct explanation of (A)
Both (A) and (R) are true and (R) is the correct explanation of (A)
(A) is true and (R) is false
(A) is false and (R) is true
A
Both (A) and (R) are true and (R) is the correct explanation of (A)
B
(A) is true and (R) is false
C
Both (A) and (R) are true and (R) is not the correct explanation of (A)
D
(A) is false and (R) is true
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Solution
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mg.dscos900=0
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