A car with an initial speed of 14.5 km/s accelerates at a uniform rate of 1.6 km/s for 9.0 s. Find the final speed of the car during this time.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?