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19 Nov 2019
A truck on a straight road starts from rest and accelerates at 2.0m/s2 until it reaches a speed of 20m/s. Then the truck travels for 20 s at a constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0s s. (a) How long is the truck in motion? (b) What is the average velocity of the truck during the motion described?
A truck on a straight road starts from rest and accelerates at 2.0m/s2 until it reaches a speed of 20m/s. Then the truck travels for 20 s at a constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0s s. (a) How long is the truck in motion? (b) What is the average velocity of the truck during the motion described?
Tod ThielLv2
19 Nov 2019