A body starting from rest accelerates uniformly at the rate of 5m/s² for 6 seconds. it travels at the speed attained for a time t seconds before coming to rest in 20 seconds. if the body covers a total distance of 2 km. (I) sketch the velocity time graph for the motion of the body (II) calculate the time t

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

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.

Newtons view of arrangement of the universe