Mechanical Engineering – Distance travelled by a projectile. The velocity, v(t) , in m s -1 , of a projectile is given by   (a) Calculate the distance travelled in the first 3 seconds. (b) Calculate...

Mechanical Engineering – Distance travelled by a projectile. The velocity, v(t) , in m s^-1, of a projectile is given by
  (a) Calculate the distance travelled in the first 3 seconds. (b) Calculate the average speed over the first 3 seconds.

Thermodynamics. The pressure, P, and volume, V, of a gas are connected by PV^0.9
= 10⁶
Calculate the work done by the gas as it expands in volume from 100 to 1000.