s) so that ball lands on the truck? (Assume the ball & back of the truck to be at the same horizontal level)

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A football is kicked at an angle θ = $45^{\circ}$ . It is intended that the ball lands in the back of a moving truck, which has a trunk of length L = 5 m. If the initial horizontal distance from the back of the truck to the ball, at the instant of the kick is 5 m & the truck moves directly away from the ball at velocity V = 9 m/s. What is approximate maximum & minimum velocity (in m/s) so that ball lands on the truck? (Assume the ball & back of the truck to be at the same horizontal level)

Q. A truck starts from origin, accelerating with

a m s^{- 2}

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30^{o}

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v m s^{- 1}

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a

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Q. A truck of height 10 m and length 20 m is moving with a constant velocity of v = 5 m/sec. A ball, 30 m away from the truck, is projected with a velocity of

20

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^{o}

with horizontal. At how much distance from point A (top corner of the truck), will the ball strike the truck ?

Q. A truck is moving horizontally with velocity

v

. A ball thrown vertically upward with a velocity

u

at angle

θ

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A person is standing on a truck moving with a constant velocity of $14.7 m / s$ on a horizontal road. The man throws a ball $v$ that it returns to the truck after the truck has moved $58.8 m$ . Find the speed and the angle of projection (a) as seen from the truck, (b) as seen from the road.

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