A 1500 kg racecar goes at a constant speed of 96 km/h round a curved section of track that has a radius of 80 m.  1. What is the speed of the car in m/s?                     2. What is the car’s centripetal acceleration?                                                                3. What is the centripetal force acting on the car?

A ball on a string is swinging around in a circle with a radius of 1 m at a velocity of 2.5 m/s. What is the acceleration of the ball? Answer in m/s2

33. A curve on a highway has a radius of curvature of 200.0 m. What is the magnitude of a car’s centripetal acceleration as it travels along this curve at a constant speed of 26.8 m/s in 4.00 s?A. 0 m/sB. 0.134 m/sC. 3.59 m/sD. 6.70 m/s

3. A ball attached to a rope is spinning in a circle with a constant speed of 8m/s. If the length of the string is 0.4m, what is the acceleration a' (magnitude and direction) of the ball in the picture? 4. A ball is initially rolling 3m/s east along a table. It undergoes an acceleration of 0.4m/s² south for 2 seconds. What is the velocity of the ball after this acceleration? Write your answer as a tuple (vx, vy). 5. Consider these three vectors: A, B, and C. a. Draw these three vectors as a chain, and find their sum. b. Write the three vectors and their sum as tuples (vx, Vy). A = B = C= " → A + B + C = y A (0,2) X B C