Calculate the work done by Kevin as he lifts 3 boxes (mass=45 KG) 57 CM high with an acceleration recorded to be 12.3 m/s^2. PLEASE ANSWER ASAP!!!
I WILL GIVE BRAINLIEST!!!
PLEASE IT SHOULD BE A CORRECT ANSWER WITH AN EXPLANATION ON HOW TO SOLVE IT!!!

Answer = 31.5J (rounded to 1dp)

The question wants to find the work done, where work done can be calculated in the equation:

Work done = Force x Distance

The force is not given in the question, however they give the acceleration and mass, so you can calculate the force using Newton's second law:

Force = Mass x Acceleration

First, calculate the force. The mass is 45kg for the 3 boxes and the acceleration is 12.3m/s^2.

Force = 45 x 12.3

Force = 553.5N

Now that you have the force (553.5N) and distance (57cm), substitute those values into the equation for work done.

Make sure to convert the 57cm into metres (into SI units), otherwise the answer would be wrong.

57cm = 0.057m

Work done = Force x Distance

Work done = 553.5 x 0.057

Work done = 31.5J (rounded to 1dp)

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.