Abox weighing 100 n is pushed up an incline plane that is 5 m long. it takes a force of 75 n to push it to the top, which has a height of 3m. find the efficiency

0.8

Explanation:

Work = force × distance

W = Fd

W = 75 N × 5 m

W = 375 J

Potential energy = weight × height

PE = mgh

PE = 100 N × 3 m

PE = 300 J

Efficiency = energy out / energy in

e = 300 J / 375 J

e = 0.8

The efficiency is 0.8, or 80%.

the force required to move the cart is divided by three or 33.33 n.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.