I need to show my work and don’t know ANYTHING . PLS HELP

Acar is going 5m/s around a bend with a radius of 10m/s why is the accelerant?

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.