The motorcycle moves along the rounded sections of the road with a radius of 120 m at a speed
| September 11, 2021 | education
The motorcycle moves along the rounded sections of the road with a radius of 120 m at a speed of 36 km / h. What is the centripetal acceleration of a motorcycle?
R = 120 m.
V = 36 km / h = 10 m / s.
a -?
When a body moves around a circle of radius R, with a constant modulus of velocity V, the body has a centripetal acceleration a, the value of which is determined by the formula: a = V2 / R.
The motorcyclist’s speed is converted into SI units.
V = 36 km / h = 36 * 1000 m / 1 * 60 min = 36000 m / 60 * 60 s = 36000 m / 3600 s = 10 m / s.
a = (10 m / s) 2/120 m = 0.83 m / s2.
Answer: the centripetal acceleration of the motorcyclist is a = 0.83 m / s2.
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