Gravitational Force - Study Mode

[#141] A smooth plane inclined at an angle θ with the horizontal as shown in the given figure. A body starts from rest and slides down on the inclined surface. The time taken by the body to reach the bottom is
Correct Answer

(C) $$frac{1}{{sin heta }}sqrt {frac{{2h}}{g}} $$

[#142] Earth's escape velocity is
Correct Answer

(D) 11.2 km/s

[#143] The weight of an object on Earth is 200N. What is its mass? (g = 10ms -2 )
Correct Answer

(A) 20kg

[#144] Assertion (A) The speed of satellite always remain constant in an orbit. Reason (R) The speed of a satellite depends on its path.
Correct Answer

(D) A is false, but R is true

[#145] Symbol of universal gravitational constant is . . . . . . . .
Correct Answer

(B) G