(A) 50 m/s2
(B) 100 m/s2
(C) 200 m/s2
(D) 300 m/s2
The value of ‘g’ at the center of earth is?
(A) Zero
(B) 2 g
(C) 3 g
(D) None of the above
Distance covered by freely falling body in two seconds is?
(A) 9.8 m
(B) 19.6 m
(C) 44.4 m
(D) 49 m
A ball is allowed to fall freely from certain height. It covers a distance in 1st second equal to:
(A) g/2
(B) g
(C) 2g
(D) None of the above
The equation of motion are not useful for objects moving with:
(A) Uniform velocity
(B) Uniform acceleration
(C) Variable acceleration
(D) Variable velocity
A stone is up from the surface of earth when it reaches a maximum height. Its KE equals to?
(A) Zero
(B) 1 mgh
(C) 1/2 mgh
(D) None of the above
A cricket ball is hit so that it travels straight up in air and it requires 3 seconds to reach the maximum height its initial velocity is?
(A) 5 m/s
(B) 10 m/s
(C) 15 m/s
(D) 29.4 m/s
A bullet shot straight up returns to its starting point in 10 seconds. The initial speed was?
(A) 9.8 m/s
(B) 24.5 m/s
(C) 49 m/s
(D) 98 m/s