You release a ball from rest attached to a string as shown in Figure A. The ball swings freely, and at the bottom of its circular path it strikes a stationary block. The block slides to the left with a speed of 4ms, and the ball bounces back to the right. To what maximum height does the ball swing back as shown in Figure B? Assume no mechanical energy is lost at any time. (The string’s length is 7 m. The ball’s mass is 1kg, the block’s mass is 4kg, ignore the mass of the string.)

Question

If needed, g=10ms2.

Maximum Height in Figure B =- unanswered meters

Answer 1

2 m