It depends. If you are driving and the person doesn't look like a serial killer, you should stop.
Answer:
40000÷40=1000 joules is required to work in 40 seconds
Answer:
Explanation:
The work done is defined as the product of force applied in the direction of displacement and the displacement.
W = F x d x Cosθ
where, F is the force applied, d be the displacement and θ be the angle between the displacement and force.
For the normal forces, the angle between the displacement and the force applied is 90 degree, and the value of Cos 90 is zero, so the work done is zero.
125 because f=ma so you would use 100=mx0.75