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Throwing and Catching at Same Height

A ball of mas...

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A ball of mass m is thrown from ground with speed u at an angle θ with horizontal.Find the power when the ball is at maximum height of the trajector

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Q. A ball of mass

160 g

is thrown up at an angle of

60^{o}

to the horizontal at a speed of

10 m s^{- 1}

. The angular momentum of the ball at the highest point of the trajectory with respect to the point from which the ball is thrown is nearly:

(g = 10 m s^{- 2})

Q. A ball is thrown at a speed of

20 m / s

30^{o}

with the horizontal. The maximum height reached by the ball is (use

g = 10 m / s^{2}

)

Q. A ball of mass

m

is thrown vertically upwards. Another ball of mass

2 m

is thrown simultaneously at an angle

θ

with horizontal. Both of them hit the ground at the same time when thrown from the same height. The heights attained by the two are in the ratio ?

Q. A body of mass

m

is projected from ground with speed

u

θ

with horizontal. The power delivered by gravity when it is at half of maximum height from ground is

Q. A ball is thrown at a speed of

40 m / s

60^{o}

with the horizontal. Find (a) the maximum height reached and (b) the range of the ball . Take

g = 10 m / S^{2}

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