- Question 8 A Tennis Ball Is Served At 26 M S And Returned In The Opposite Direction At 23 M S If The Collision With The 1 (213.96 KiB) Viewed 33 times
QUESTION 10 Starting from rest at a stoplight you accelerate at 3.0 m/s² for 6.0 s, then drive at a constant speed for 4.0 s. You then see a police car and decelerate at 5.0 m/s² for 2.5 s. What was your final speed in meters per second? 5.5 m/s 0.16 m/s 25 m/s 22 m/s QUESTION 11 At t = 2.00 s, a particle moving with a constant velocity is located at x = 1.00 m. At t = 4.50 s, the particle is located at x = 8.00 m. Dete rmine the velocity (in m/s) of the particle in the x-direction. 2.8 m/s 1.1 m/s 1.4 m/s 2.3 m/s
QUESTION 12 The position of an object as a function of time is given by x = (-1.5)t² + (10.0)t + 6.0, where x is in meters and t is in seconds. Determine the average speed (in m/s) of the object between t = 1.0 s and 3.0 s. 9.3 m/s 0.0 m/s 3.0 m/s 4.0 m/s QUESTION 13 The position of an object as a function of time is given by x = (-1.5)t² + (10.0)t + 6.0, where x is in meters and t is in seconds. Determine the instantaneous velocity (in m/s) in the x-direction at t = 2.5 s. 2.5 m/s 6.3 m/s 3.0 m/s 0.0 m/s