Only flat line segments on speed-time graphs have zero acceleration. true or false

Two bikers are cycling from the Greater Toronto Area to Kingston. The first biker, Merckx, started 200 kilometers (KMs) away from Kingston. The second, Froome started 20KM behind Merckx. Both cyclists start out slowly, but Merckx suffers a bike fault delaying them from starting for 11 hours and giving Froome a head start. Assuming the bikers match the below speed representing the maximum speeds of each biker from the time they begin moving, which biker will reach Kingston first and when? Which of the following answer is correct: a) Merckx in 36.2 hours b) Merckx in 31.2 hours  c) Froome in 38.7 hours d) Froome in 35.6 hours

Jeff Bezos just landed on the moon and is conducting an experiment, he drops a hammer from rest from a height of 2.01 m and uses a stopwatch to measure that the hammer takes 1.04 s to hit the ground. 1) Determine the magnitude of the acceleration due to gravity on the moon. 2) he then throws the hammer straight up into the Martian sky. If it comes back to his hand in 4.20 s, with what speed did he throw it?

Assume that you are driving a car at 10.0 km/h and then you accelerate to 80.0 km/h with an acceleration of 3.50 m/s². How much time will it take until you reach the velocity 80.0 km/h? (Provide you answer in s with two decimal places.) Your Answer: