Question

a) what was the acceleration of the block down the ramp before the rope is pulled?

b) what was the acceleration of the block down the ramp after the rope is pulled?

A4 kg block is released from rest at the top of a frictionless plane of length 9m that is inclined at an angle of 21 degrees to the horizontal Acord is attached to the block and trails along behind it. When the block reaches a point 3 m along the incline from the top, someone grasps the cord and pulls it parallel to the incine. They pull hard enough that the block comes to rest just as it reaches the bottom of the incline Total length Cord Distance covered before the rope is grabbed e

Answer 1

case- ung cond 3m fm 70=210 ung at thy's peint be a = acceleration of block will gsino 9.8 X sin 21° a- 3.52 mis2 block at point p will be Velocity of + 2as V242 2 x 3.32 x 3 up 4.6 misa T vo 2 2 as case 2 1² - v lung VOR P a 2s a 6 21.12 2x6 a = – 1.76 m/s