Quelle est en m/s la vitesse d'un outobus qui franchit une distance de 80km en 1h20mn.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Work = force × a. work b. energy c. distance d. momentum