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Sholpan [36]
4 years ago
14

If for every action force an equal and opposite reaction force exists, how can anything ever be accelerated? The action and reac

tion forces act on different objects, therefore the net force is not always zero. The action force, when accelerating, is greater than the reaction force. The reaction force is not always in the same vector direction as the action force. none of the above
Physics
2 answers:
shepuryov [24]4 years ago
7 0

The action and reaction forces act on different objects, therefore the net force is not always zero, so anything can be accelerated.

Answer: A

Explanation

Consider two objects. When one object applies force to another object (which is at a state of rest), this force is known as action force.

Here the force is applied to the second object.

As a reaction to the force, the object gains energy and changes its state of rest to action.

This is reaction force and can be seen in the second object only.

Therefore, both action and reaction take place in different bodies.

Vanyuwa [196]4 years ago
4 0

Answer:

The action and reaction forces act on different objects, therefore the net force is not always zero.

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A car jumps off a ramp with a Kinetic energy of 5,000 joules. This same car has a gravitational potential energy of 4,685 joules
Sedaia [141]

Answer:

14,653 J.

Explanation:

We know that,

Total mechanical energy is equal to the sum of all the potential and kinetic energies.

Given,

Kinetic energy when a car jumps off a ramp= 5000 J

Potential energy = 4685 J

Potential energy when the car lands= 4968 J

TME = 5000 + 4685 + 4968

        = 14,653 J

Hence, the car's total mechanical engery is equal to 14,653 J.

3 0
3 years ago
If you push a box across the floor, the box experiences what kind of friction?
Talja [164]
I think it is kinetic friction not the best at physics
4 0
3 years ago
Read 2 more answers
Put the balloon near (BUT NOT TOUCHING) the wall. Leave about as much space as the width of your pinky finger between the balloo
natka813 [3]

Answer:

Move towards the wall.

Explanation:

When the balloon is kept near to the wall not touching the wall, there is a force of electrostatic attraction so that the balloon moves towards the wall and stick to it.

As there is some charge on the balloon and the wall is uncharged so the force is there due to which the balloon moves towards the wall.

3 0
3 years ago
When personal information stored digitally on a computer is accidentally
Schach [20]

Answer:

C. The information is always easily restored."

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When the personal information stored digitally on a computer is accidentally

deleted, the data is even stored in the hard disk in various fragments until it is not permanently deleted. Hence the correct option will be "C. The information is always easily restored."

4 0
3 years ago
A 0.50-kg croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it i
NeTakaya

The impulse given to the ball is equal to the change in its momentum:

J = ∆p = (0.50 kg) (5.6 m/s - 0) = 2.8 kg•m/s

This is also equal to the product of the average force and the time interval ∆t :

J = F(ave) ∆t

so that if F(ave) = 200 N, then

∆t = J / F(ave) = (2.8 kg•m/s) / (200 N) = 0.014 s

7 0
2 years ago
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