a)Jill of the Jungle swings on a vine 7.0 m long. What is the tension in the vin

Question

a)Jill of the Jungle swings on a vine 7.0 m long. What is the tension in the vine ifJill, whose mass is 61 kg, is moving at 2.7 m/s when the vine is vertical? b)When you take your 1200 kg car out for a spin, you go arounda corner of radius 57.8 m with a speedof 14.0 m/s. The coefficient of staticfriction between the car and the road is 0.73. Assuming your car doesn't skid, what is theforce exerted on it by static friction?

a)Jill of the Jungle swings on a vine 7.0 m long. What is the tension in the vine ifJill, whose mass is 61 kg, is moving at 2.7 m/s when the vine is vertical? b)When you take your 1200 kg car out for a spin, you go arounda corner of radius 57.8 m with a speedof 14.0 m/s. The coefficient of staticfriction between the car and the road is 0.73. Assuming your car doesn't skid, what is theforce exerted on it by static friction?

Explanation / Answer

a. When it is vertical then T-mg=mv2/r T=mg+mv2/r T=61*9.8+61*2.72/7 T=661.3271N b. The force exerted due to friction is fr=sN fr=0.73*mg fr=0.73*1200*9.8=8584.8N Hence we get by it.

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