A curve in a road forms part of a horizontal circle. As a cargoes around it at c

Question

A curve in a road forms part of a horizontal circle. As a cargoes around it at constant speed 14.0 m/s, the total force exertedon the driver has magnitude 125 N.What are the magnitude and direction of the total vector forceexerted on the driver if the speed is 23.5 m/s instead?
N    --Direction-- a) away from center of circle b) towards center or circle c) in same direction as velocity d) in opposite direction from velocity A curve in a road forms part of a horizontal circle. As a cargoes around it at constant speed 14.0 m/s, the total force exertedon the driver has magnitude 125 N.What are the magnitude and direction of the total vector forceexerted on the driver if the speed is 23.5 m/s instead?
N    --Direction-- a) away from center of circle b) towards center or circle c) in same direction as velocity d) in opposite direction from velocity

Explanation / Answer

A curve in a road forms part of a horizontal circle. As a cargoes around it at constant speed 14.0 m/s, the total force exertedon the driver has magnitude 125 N.What are the magnitude and direction of the total vector forceexerted on the driver if the speed is 23.5 m/s instead?
125=m*14*14/r
so m/r=125/196
now when the speed is 23.5m/sec
force=[125/196]*23.5*23.5=352.20N
N    --Direction--option B is correct.
a) away from center of circle b) towards center or circle c) in same direction as velocity d) in opposite direction from velocity

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