Question

A trailer of mass 1000 kg is towed by means of a rope attached to a car moving at a steady speed along a level road. The tension in the rope is 400 N. The car starts to accelerate steadily. If the tension in the rope is now 1650 N, with what acceleration is the trailer moving ?(a) 1.75 ms⁻²(b) 0.75 ms⁻²(c) 2.5 ms⁻²(d) 1.25 ms⁻²

Answer 1

the answer is d.
I hope this answers this correct

Answer 2

Answer:

D) 1.25m/s^2 is the correct answer

Explanation:

mass of trailer= 1000 kg

It is towed by means of a rope attached to a car moving at a steady speed along a level road.

tension in the rope = T1= 400 N.

The car starts to accelerate steadily.

tension in the rope T2= 1650 N,

To find

acceleration is the trailer moving= a= ?

Force of friction = f = 400N.

The net resultant force

Fnet=

1650-400

=1250N.

We know that

Using Newton's law

Force = mass *acceleration

Thus acceleration= force/mass

=1250/1000

(..as per given)

=1.25m/s^2

Thus the acceleration with which the trailer is moving is 1.25m/s^2.