HW30#7 – A block is released from rest on a frictionless incline angled. Below the block is a spring that can be compressed…

歡迎來到Yogi老師解題給你看,今天我要講解的是AP Physics C Mechanics的問題

In the figure below, a block of mass m = 11 kg is released from rest on a frictionless incline angled of angle θ = 30°. Below the block is a spring that can be compressed 2.0 cm by a force of 260 N. The block momentarily stops when it compresses the spring by 6.2 cm.

(a) How far has the block moved down the incline to this stopping point?

(b) What is the speed of the block just as it touches the spring?