Sharon wants to rearrange the furniture in her room. How much work will she do if she used 20 N of force to move a 50 kg chest a distance of 15 meters
A: 3.3 J
B: 300 J
C: 1000 J
D: 15000 J

B

Explanation:

W = Fd

W = 20N x 15m

W = 300 Nm

W = 300 J

Nm and joule are considered the same units

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

a and b sometimes have a positive value