If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
Options
(a) Their ranges are same (b) Their heights are same (c) Their times of flight are same […]
A simple pendulum oscillates in a vertical plane. When it passes through the mean position, the tension in the string is 3 times the weight of the pendulum bob. What is the maximum displacement of […]
Maximum range for a projectile motion is given as R. The maximum height will be
Options
(a) R (b) 2R (c) R/4 (d) R/2
Correct Answer:
R/4
Explanation:
No explanation available. Be the […]
A particle moves with constant speed v along a circular path of radius r and completes the circle in time T. The acceleration of the particle is
Options
(a) 2πv/T (b) 2πr/T (c) 2πr²/T […]
A cycle wheel of radius 4 m completes one revolution in two seconds. Then acceleration of cycle will be
Options
(a) π² ms⁻² (b) 2π² ms⁻² (c) 4π² ms⁻² (d) 8π² ms⁻²
Correct Answer: […]
A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is
Options
(a) √rF/m (b) √F/r (c) √Fmr (d) […]
An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal. The equation for the trajectory is h=Ax-Bx² where h is the height, x is the horizontal distance, A […]
A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity at the highest point of the circle will be
Options
(a) √2Rg (b) √3Rg (c) √Rg (d) 2Rg
Correct Answer:
√Rg
Which one of the following is a vector?
Options
(a) Strength of electric circuit (b) Gravitational potential (c) Work done (d) Impulse
Correct Answer:
Impulse
Explanation:
No explanation available. Be the first to […]
A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point
Options
(a) The momentum changes by mv (b) The momentum changes by 2mv […]
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