Two-Stage Motion with Constant Acceleration · PhysicsBowl 2015 #32
Physics · mechanics
Problem
An object moving along a line completes a 20.0 second trip with an average speed of 10.0 m/s in two stages. During stage 1, the object moves with a constant velocity of 6.0 m/s to the right for 12.0 seconds. What constant magnitude acceleration directed to the left must the object have during the 8.0 seconds of stage 2?
(A) 2.5 m/s2
(B) [Answer choices appear to be cut off in the original text]