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3 years ago

90 POINTS!!!!!

Physics

2 answers:

Alex_Xolod [135]3 years ago

7 0

Answer:

-696 N

1440 N

Explanation:

The force that the car exerts on the trailer is:

T = m₂ a

T = (580 kg) (1.20 m/s²)

T = 696 N

The force that the trailer exerts on the car is opposite and equal.

T' = -T

T' = -696 N

The net force on the car is:

∑F = m₁ a

∑F = (1200 kg) (1.20 m/s²)

∑F = 1440 N

attashe74 [19]3 years ago

5 0

Answer:

1. What force does the trailer exert on the car? = 696 Newtons

2. -696 Newtons are acting on the car.

Explanation:

1.Calculate the force exerted by the car on the trailer.

The expression for the force from Newton’s second law is, F=ma

Substitute 580kg for m and 1.2m^2

F=(580kg)(1.20m/s^2 = 696N

2. According to Newton’s third law, an equal force is exerted by the trailer in the opposite direction. Hence, the magnitude of the force is negative.

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Answer:

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(3) and (4) is correct option.

Explanation:

Given that,

Beat frequency f = 5.0 Hz

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Using formula of frequency

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3 years ago

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Our values are given by,

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Replacing we have that

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Answer:

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