A police car drives with a constant speed of 60 m/h. How long will it take to travel a distance of 180 kilometers?

Physics

1 answer:

posledela3 years ago

4 0

3000 km; you must first convert 60 m to km, then divide that number by 180.

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suppose the same chest is at rest. you push it horizontally with force of 110N but it does not budge. What is the contact force

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110 N

Explanation:

When a force is applied on a body and body does not move, it means the body remains at rest.

In this condition, there is a contact force between the body and the floor which is called static friction.

Th static friction force is a self adjusting force and comes into play when the body is at rest.

Here, the applied force is 110 N and the chest is not moving, that means a static friction force is acting between the chest and the floor. This static friction force is the force of contact between the chest and the floor. The static friction force is equal to the applied force when the body does not move.

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Two racecars are driving at constant speeds around a circular track. Both cars are the same distance away from the center of the

Alenkasestr [34]

Answer:

The acceleration of car 2 is four times of the acceleration of car 1.

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In this case, two race cars are driving at constant speeds around a circular track. Both cars are the same distance away from the center of the track, but car 2 is driving twice as fast as car 1.

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