3 years ago

What is the force that causes an object to have a curved path during projectile motion?

Physics

1 answer:

katovenus [111]3 years ago

3 0

Answer:

Gravity

Explanation:

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Why should seat belts not be mandatory<br><br> QUICK PLZ

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Seat belts are among the most common and effective safety devices ever invented. Since their introduction, seat belts have saved countless lives and prevented many injuries. But making it mandatory to wear seat belts has been a slow process, as they were required by law in each state at a different time.

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Which of the following is a true statement for a child's toy spinning in a circle at constant speed?

exis [7]

Answer:

The answer is C.

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A mass m = 0.6 kg is released from rest at the top edge of a hemispherical bowl with radius = 1.1 meters. The mass then slides w

Aneli [31]

Answer:

The angle is $\theta = 36.24 ^o$

Explanation:

From the question we are told that

The mass is $m = 0.6 \ kg$

The radius is $r = 1.1 \ m$

The speed is $v = 3.57 \ m /s$

According to the law of energy conservation

The potential energy of the mass at the top is equal to the kinetic energy at the bottom i.e

$m * g * h = \frac{1}{2} * m * v^2$

=> $h = \frac{1}{2 g } * v^2$

Here h is the vertical distance traveled by the mass which is also mathematically represented as

$h = r * sin (\theta )$

$\theta = sin ^{-1} [ \frac{1}{2* g* r } * v^2]$

substituting values

$\theta = sin ^{-1} [ \frac{1}{2* 9.8* 1.1 } * (3.57)^2]$

$\theta = 36.24 ^o$

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4 years ago

An unwary football player collides with a padded goalpost while running at a velocity of 5.70 m/s and comes to a full stop after

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The relationship between the initial velocity, final velociy, distance, and deceleration can be expressed in the following equation.

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4 years ago

A 1kw electric heater is switched on for ten minutes. how much heat does it produce

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H= P × t

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10 min = 600s

H= 1000×600=600,000J

=> 143.40kcal

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3 years ago