Explain how horizontal motion can be uniform while vertical motion is accelerated.

1 answer:

7 0

In projectile motion horizontal motion has zero acceleration and when there is no air resistance acting on the object the motion will be uniform. Motion in the vertical direction is accelerated downwards to to the acceleration due to gravity

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Which atmospheric layer prevents meteoroids from reaching earth’s surface

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Stratosphere because the atmosphere get denser

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A 6 kg object falls 10 m. The object is attached mechanically to a paddle-wheel which rotates as the object falls. The paddle-wh

maksim [4K]

Answer: $16.234^{\circ}C$

Explanation:

Given

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falling height(h)=10 m

mass of water( $m_w$ )=600 gm

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Let T be the Final Temperature of water

Here Object Potential Energy is converted into Heat energy which will be absorbed by water

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This is not an efficient way of heating water as there is only $0.234^{\circ}C$ increase in temperature.

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If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?

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Read 2 more answers

Near the end of a marathon race, the first two runners are separated by a distance of 45.6 m. The front runner has a velocity of

morpeh [17]

Answer:17.08 s

Explanation:

Given

distance between First and second Runner is 45.6 m

speed of first runner $(v_1)$ =3.1 m/s