(A) 8 s
(B) 6 s
(C) 7 s
(D) 10 s
Tag: Physics Mcq
For which pair ranges of projectile are same:
(A) 50 degree, 45 degree
(B) 50 degree,40 degree
(C) 80 degree,20 degree
(D) All of these
If the range of a projectile is R, then its K.E is maximum after covering a distance equal to:
(A) R / 4
(B) R
(C) R / 2
(D) 3R / 4
If the velocity of the projection of a projectile is trebled, then its maximum range will be:
(A) Quadruple
(B) Nine times
(C) six times
(D) eight times
A projectile thrown with a velocity v and angle θ has a range R on the surface of earth. For same v and θ, its range on the surface of moon will be:
(A) 36 R
(B) R / 36
(C) R / 6
(D) 6 R
A ball sticking to the wall is a perfectly inelastic collision:
(A) The velocity of the ball after the collision is zero
(B) Its kinetic energy is then zero.
(C) All of the kinetic energy has been lost.
(D) All of these
The force needed to fracture a covered skin with hair is__ times than cranium.
(A) 10 times
(B) 2 times
(C) 5 times
(D) 50 times
A particle of mass “m” moving with velocity v strikes a stationary particle of mass “2m” and sticks to it. The speed of the system will be:
(A) v/2
(B) 2v
(C) v/3
(D) 3v