A cricketer can throw a ball to a maximum horizontal distance of 100 m. With the same effort, he throws the ball vertically upwards. The maximum height attained by the ball is
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Find out the angle of projection, if range is 4 times of maximum height
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(a) 60⁰ (b) 45⁰ (c) 30⁰ (d) 75⁰
Correct Answer:
45⁰
Explanation:
R=4H 2 u² sin θ cos θ/g […]
The horizontal range of a projectile is 4√3 times the maximum height achieved by it. The angle of projection is
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(a) 30⁰ (b) 45⁰ (c) 60⁰ (d) 90⁰
Correct Answer:
30⁰
Explanation:
u²sin […]
A particle of mass m is projected with a velocity v making an angle of 45° with the horizontal.The magnitude of angular momentum of projectile about the point of projection when the particle is at […]
A ball is moving in a circular path of radius 5 m.If tangential acceleration at any instant is 10 m/s ² and the net acceleration makes an angle 30° with the centripetal acceleration, then the […]
A piece of marble is projected from the earth’s surface with velocity of 50 m/s.2 s later, it just clears a wall 5m high.What is the angle of projection?
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(a) 45° (b) […]
A particle is moving such that its position coordinates (x,y) are (2 m,3 m) at time t=0,(6 m,7 m) at time t=2 s and (13 m,14 m) at time t=0 to t=5 s is
A projectile is thrown in the upward direction making an angle of 60°with the horizontal direction with a velocity of 147 m/s.Then, the time after which it’s inclination with the horizontal is 45°,is
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The horizontal range and maximum height attained by a projectile are R and H,respectively.If a constant horizontal acceleration a=g/4 is imparted to the projectile due to wind,then it’s horizontal range and maximum height will be […]
If two vectors are equal in magnitude and their resultant is also equal in magnitude to one of them, then the angle between the two vectors is
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(a) 60° (b) 120° (c) 90° […]
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