A crate with mass M =110k g is being pulled up a ramp with with a constant speed

Question

A crate with mass M =110k g is being pulled up a ramp with with a constant speed of 1.5 m/s by a block with mass 60 kg. The crate and block are connected by a massless rope that connote be stretched. The pulley is frictionless and massless. At the instant shown in the figure below, the block has a height h = 2meters above the ground. The incline makes an angle of 25 degrees with respect to the ground? A.) Explain why the tension in the rope does no work on the block-crate-earth system? B.) Just before the block reaches the ground, how much of the energy of the system has been converted to thermal energy?

Explanation / Answer

since crate and mass is moving with constant velocity, net force on it is zero.

since there is no friction mechanical energy will be conserved.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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