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gtnhenbr [62]
3 years ago
11

A jet plane is moving at a constant velocity on a flat surface. Which forces act against the forward motion of the plane? A. Gra

vity and engine thrust B. Engine thrust and friction C. Friction and air resistance D. Air resistance and gravity
Physics
1 answer:
Leni [432]3 years ago
5 0

Answer:

C Friction and air resistance

Explanation:

The force of friction acts in a direction opposite to the direction of motion of an object in contact with a surface. The amount of friction is proportional to the moving object's weight and a coefficient of friction (which is dependent on the object-surface contact material).

Air resistance, similar to surface-induced friction, acts as a deceleration force. Its magnitude depends on the object's speed and surface area.

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An egg rolls off a kitchen counter and breaks as it hits the floor. The counter is 1.0 m high, the mass of the egg is about 50 g
crimeas [40]
Use equations of motion to find the velocity just before it hits the floor: 
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<span>Final velocity = 4.42m/s </span>

<span>Impulse is change in momentum so: </span>
<span>m(Vf - Vi) = 0.05(0 - 4.42) </span>
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

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3 years ago
An automobile with an initial speed of 5.13 m/s accelerates uniformly at the rate of 3.0 m/s2. Find the final speed of the car a
Digiron [165]

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