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4 years ago

How is a frame of reference used to describe motion

1 answer:

5 0

In particle kinematics, we measure the acceleration of the particle. For this, an observer is taken as a reference point. Generally we consider the observer as in origin of a co-ordinate system. The place where observer is placed is known as frame of reference.
Newton's laws only work in the inertial frame of reference. Inertial frame is a frame of reference whose acceleration is zero. But, if you are observing the motion of an object from non-inertial frame, you need to add and extra force on the system under observation which is known as pseudo force.

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If a water wave completes one cycle in 2 seconds, what is the period of the wave?

notka56 [123]

2 seconds is the period (time it takes to complete one cycle)

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3 years ago

(A) Electricity and Magnetism

Maksim231197 [3]

electricity

Explanation:

the position (2,o

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3 years ago

If the value of static friction for a couch is 400N, what could be a possible value of its kinetic friction? *

Dafna11 [192]

Answer:

kinetic friction may be greater than 400 N or smaller than 400 N

Explanation:

As we know that maximum value of static friction on the rough surface is known as limiting friction and the formula of this limiting friction is known as

$F_s = \mu_s N$

now when object is sliding on the rough surface then the friction force on that surface is known as kinetic friction and the formula of kinetic friction is known as

$F_k = \mu_k N$

now we know that

$\mu_k < \mu_s$

so here value of limiting static friction force is always more than kinetic friction

also we know that

initially when body is at rest then static friction value will lie from 0 N to maximum limiting friction

and hence kinetic friction may be greater than static friction or if the static friction is maximum limiting friction then kinetic friction is smaller than static friction

so kinetic friction may be greater than 400 N or smaller than 400 N

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4 years ago

In a circult, a battery is used to

Fudgin [204]

Answer:

4. convert electrical energy into some other form of energy

7 0

3 years ago

Read 2 more answers

A car accelerates on a horizontal road due to the force exerted by :

Strike441 [17]

I am absolutely sure that if a car accelerates on a horizontal road due to the force exerted by road. I consider the last option from the list represented above to be the correct one because the <span>road oses as a nice example of a frictional force. Hope you will agree with me and find it helpful! Regards!</span>

8 0

4 years ago