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Laabri

Projectile Motion Part 2

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Last updated about 2 years ago
10 Nsɛmmisa

A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0° above the horizontal. It strikes a target above the ground 3.00 seconds later.

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Sketch the scenario including the velocity components

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2.

How far does is travel?

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3.

What is the height of the target?

An arrow is shot from a height of 1.5 m toward a cliff of height H. It is shot with a velocity of 30 m/s at an angle of 60º above the horizontal. It lands on the top edge of the cliff 4.0 s later.

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Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Sketch the scenario including the velocity components

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Asemmisa {{asɛmmisaAhyɛnsode}}
5.

What is the height of the cliff?

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Asemmisa {{asɛmmisaAhyɛnsode}}
6.

What is the maximum height reached by the arrow along its trajectory?

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A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32º ramp at a speed of 40.0 m/s (144 km/h). How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long?

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Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Sketch the scenario including the velocity components

1
Asemmisa {{asɛmmisaAhyɛnsode}}
9.

How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long?

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Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Can a goalkeeper at his goal kick a soccer ball into the opponent’s goal without the ball touching the ground? The distance will be about 95 m. A goalkeeper can give the ball a speed of 30 m/s. Explain why or why not

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7.

What is the arrow’s impact speed just before hitting the cliff?