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3 years ago

What force is required to accelerate a 1,100 kg car to 0.5 meters squared

Physics

1 answer:

Neporo4naja [7]3 years ago

8 0

Answer:550N

Explanation:

mass=1100kg

Acceleration=0.5m/s^2

Force=mass x acceleration

Force=1100 x 0.5

Force=550N

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F = mg

centripetal force acting on the skateboard

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equating both the force equation

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$v = \sqrt{gr}$

r = d/2 = 14/ 2 = 7 ft

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3 years ago

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2 years ago

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2 years ago

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2 years ago

A baseball, which has a mass of 0.685 kg., is moving with a velocity of 38.0 m/s when it contacts the baseball bat duringwhich t

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b) $10.526 s$

c) $61.82 N$

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<h3>a) Impulse delivered to the ball</h3>

According to the Impulse-Momentum theorem we have the following:

$I=\Delta p=p_{2}-p_{1}$ (1)

Where:

$I$ is the impulse

$\Delta p$ is the change in momentum

$p_{2}=mV_{2}$ is the final momentum of the ball with mass $m=0.685 kg$ and final velocity (to the right) $V_{2}=57 m/s$

$p_{1}=mV_{1}$ is the initial momentum of the ball with initial velocity (to the left) $V_{1}=-38 m/s$

So:

$I=\Delta p=mV_{2}-mV_{1}$ (2)

$I=\Delta p=m(V_{2}-V_{1})$ (3)

$I=\Delta p=0.685 kg (57 m/s-(-38 m/s))$ (4)

$I=\Delta p=65.075 kg m/s$ (5)

This time can be calculated by the following equations, taking into account the ball undergoes a maximum compression of approximately $1.0 cm=0.01 m$ :