Hi, can anyone give me a very detailed explanation to solving this problem? In t

Question

Hi, can anyone give me a very detailed explanation to solving this problem?

In this figure the person has a mass of 75kg. The floor on which they are standing has a mass of 35kg and is connected to a massless metal frame. The string and the pulley are also massless. If the person pulls on the rope with a force of 649N and makes the system (themselves and the floor) accelerate upwards at 1.99 m/s^2, what will be the magnitude of the force exerted by the person on the floor? [Also, note that the pulley is fixed to a support and is not moving.]

[TAMU. Physics 218: Exam 2; Problem 1 / B]

Explanation / Answer

force exerted by the person on the floor is 649-(75*9.81) = -86.75 N

86.75 N in the downward direction

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.