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3 years ago

Assume you are in the car and the car is moving at a certain speed to

Physics

1 answer:

Setler79 [48]3 years ago

6 0

You are at rest with respect to the car.
You are in motion with respect to the School.

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a 2000 kg car moving down the road runs into a 5000 kg stationary suv. The car applies a force of 1400 n on the suv what is the

masha68 [24]

Answer:

F_suv= 49050 N

Explanation:

We are told that a 2000 kg car moving down the road runs into a 5000 kg stationary suv. The car applies a force of 1400 N on the suv.

Now, according Newton's first law of motion, an object will continue in it's present state of rest except it is acted upon by an external body.

This means the force acting on the stationary Suv is force of gravity.

Thus; F_suv = 5000 × 9.81

F_suv= 49050 N

3 0

3 years ago

A 15-meter length of aluminum wire is at 20 degrees C. The radius of the wire is 4.2 x 10-4 meters. What’s the resistance of the

bezimeni [28]

Answer:

Idek figure it out

Explanation:

Why u so lazy?

5 0

3 years ago

A bus is moving forward at 20 m/s. A student on the bus throws a tenis ball horizontally at

seraphim [82]

Answer:

D: 35 m/s

Explanation:

The bus is moving at a speed of 20 m/s.

Thus; v_bus = 20 m/s

Tennis ball thrown horizontally towards the front of the bus is given as 15 m/s.. Thus, v_ball = 15 m/s

No, due to the fact that the bus and the ball are moving at the same time, an observer will think the speed is the sum of that of the ball and the bus.

Thus, it will appear to an observer on the sidewalk that the speed is; v_bus + v_ball = 20 + 15 = 35 m/s

8 0

3 years ago

A 0.5 kg toy car has 18 joules of kinetic energy. Calculate its speed.

marshall27 [118]

Answer: v = 8.4852813742386 m/s

Explanation:

v = √KE ÷ 1/2 M

7 0

3 years ago

The gravitational force between two objects increase as the mass increases or distance decreases

Naily [24]

The correct answer is: True

Explanation:
According to Newton's Gravitational law:

$F_g = \frac{Gm_1m_2}{r^2}$

As you can see the gravitational force is directly proportional to the masses of the objects while inversely proportional to the square of distance (r^2) between them.

Hence, yes, your statement is true!

8 0

3 years ago