Will give a truck speeds up from a velocity of 6 m/s to 14 m/s in 4 seconds. what is the truck’s acceleration?

Acceleration = (change in speed) / (time for the change)

Change in speed = (ending speed) - (starting speed)

Change in speed = (14 m/s) - (6 m/s)  =  8 m/s

Time for the change =  4 seconds

Acceleration = (8 m/s) / (4 sec)

Acceleration = (8/4) (m/s·s)

Acceleration = 2 m/s²

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

wavelength divides in half and speed stays the same.