How large must the coefficient of static friction be between the tires ond the r

Question

How large must the coefficient of static friction be between the tires ond the rood if a car is to round o level curve of rodius 90 On at a speed of 80 Ofcm/hr* (The static frictional force produces the centripetal acceleration) 2 Calculate the acceleration due to gravity on the surface of Venus. b: Determine the speed necessary for a satellite to stay in circular orbit at an altitude of 250.0km above the surface of Venus. Assume that gravity is producing the centripetal force needed to keep the satellite in orbit. c: What is the period [time for one complete revolution] of the satellite in part b. 3, A 5.00 kg object, having an initial velocity of 6.20m/s ot the top of the incline, moves

Explanation / Answer

Answer 1)

r= 90m , v=80km/h = 22.22m/s

Now Fmax= mg

Fmax >= centripetal force = mv2/r

so  mg >=mv2/r

so >= v2/rg = 0.559 =0.56 approx

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