6.3 Centripetal Force 23. (a) A 22.0 kg child is riding a playground merry-go-round that is...
23. (a) A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force must she exert to stay on if she is 1.25 m from its center? (b) What centripetal force does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 8.00 m from its center? (c) Compare each force with her weight. (d) 23d) Suppose the merry-go-round rotates at 60rpm and the child's friction...
(23) A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force (N) must she exert to stay on if she is 1.25 m from its center? (For comparison, she weighs 216 N.) A) 520 B) 483 C)410 D)357 2) In the above problem, what centripetal force (N) does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 8.00 m from its center? A) 40.5...
A 15.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 1.50 m from its center? N (b)What centripetal force (in N) does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 6.00 m from its center? N (c)Compare each force with her weight. force from (a) weight = force from (b) weight =
A 23.0 kg child is riding a playground merry-go-round that is rotating at 50.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 3.00 m from its center? N (b) What centripetal force (in N) does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 6.00 m from its center? N (c) Compare each force with her weight. force from (a) weight = force from (b)...
A 22.0-kg child is riding a playground merry-go-round that is rotating at 50.0 rev/min. a. What centripetal force is exerted if he is 1.25 m from its center? b. What centripetal force is exerted if the merry-go-round rotates at 3.0 rev/min and he is 5.0 m from its center? c. Compare each force with his weight.
A 19.75 kg child is riding a playground merry-go-round that is rotating at 41.1 rev/min. What net force is acting on her if she is standing on the merry-go-round 1.15 m from its center in newtons? The net force in this situation is sometimes called "centripetal force". What net force (in N) is acting on her if she is standing on an amusement park merry-go-round that rotates at 2.2 rpm and she is 9.3 m from its center? How many...
A 15 year old girl is riding on a playground merry-go-round, being pushed around by her friend, similar to that pictured above. The rider has a mass of 50.0 kg and a two handed grip strength of 445 N. The coefficient of friction between her and the merry-go-round is 0.100. Her friend spins her at a rate of 40 rev/min. 13. What is the frictional force, f, acting on the girl? Answer (4 points): f= 14. What is the angular...
A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.350 rev/s. What is its angular velocity (in rev/s) after a 22.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest. Incorrect: Your answer is incorrect. rev/s
39. A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.500 rev/s. What is its angular velocity after a 22.0-kg child gets onto it by grabbing its outer edge? The child is initially at rest.
A child riding a merry-go-round feels a centripetal force. How would the force change if the velocity doubled (2x)? 1) Decrease to one quarter (1/4x) 2) Decreases to one half (1/2x) 3) Doubles (2x) 4) Quadruple (4x)