Aperson pulls on a 7.4 kg crate against a 22 newton frictional force, using a rope attached to the center of the crate. if the the crate began with a speed of 1.6 m/s and speeded up to 2.6 m/s while being pulled a horizontal distance of 2.0 meters. what is the work in j done by the force applied by the rope on the crate?

Work done will be 59.54 J

Explanation:

We have given that person pulls a 7.4 kg crate against 22 Newton frictional force

So frictional force

Balance force is given by

We have given initial speed u = 1.6 m /sec

And final speed v = 2.6 m/sec

Distance s = 2 m

From third equation of motion we know that

So

We know that work done is given by

the bal will not change its velocity.

i think its c if i'm wrong