Arace car has a centripetal acceleration of 18.75 m/s2 as it goes around a curve. if the curve is a circle with radius 12 m, what is the speed of the car? a. 15 m/s b. 9.8 m/s c. 1.6 m/s d. 17.2 m/s

Option (A) is correct.

Explanation:

The centripetal acceleration is given by

a= v²/r

V= velocity

r= radius= 12 m

a= centripetal acceleration= 18.75 m/s²

18.75= v²/12

v²=18.75 x 12

v²=225

v= 15 m/s

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.