11) a model drag car is being accelerated along its track from rest by a motor with a force of 75 n, but there is a drag force of 30 n due to the track. what is the kinetic energy after 2 m of travel?

The kinetic energy after 2 m is:

90 J

Explanation:

Given that:

Truck is accelerated from rest with force = F₁ = 75 N

Drag force = F₂ = 30 N

Distance = D = 2 m

Sol:

Kinetic energy is defined as the work done required to move a body from rest position to a specific velocity.

We know that work done is equal to the force multiplied by the distance:

Work done = Force x Distance

W = F x D

According to given situation, the above equation becomes:

W = ( F₁ - F₂) x D

W = ( 75 - 30) x 2

W = 90 J

So, the kinetic energy is 90 J.

what was the answer?

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation: