Question

Question 10 Answer saved Points out of 100 rag question The figure below shows a bowling ball (uniform filled sphere) of mass M=2.2 kg and radius r (not required in final answer) which begins at rest at a height h=7.3 m and rolls without slipping down a ramp and around a circular loop of radius R=2.1 m. What is the magnitude of the normal force on the ball when it reaches the point Q? h R Q Select one 0 144 91 0 76 27 N 99.15 N 0 53.39 N 129.65 N

Answer 1

If then o is the velocity of ball at a by principle of conservation of energy I mu²+1/2 1 0 2 = mgh-R) 2 I mot Imv² + 12 m 25 emoglow 2 = 2 me²th me? (:"v2&w) mg (h-R) = 2 mu? * 9.8(73-21) 10 uz Q = 728 v= 8.53 The forces on the ball at are ... Normal force N the ball at position muz N= mee R mg N = 2.2 x 72.8 9.1 = 76.27 newtor