Just a general question, if there is an obstacle in a pipe, such as a turbine, will the speed of the fluid before the turbine be the same as after it? Or will the turbine cause the speed in the whole pipe to slow down?
Homework Statement
A skateboarder with total mass of 70kg starts from rest at the top of a ramp and accelerates down it. The ramp is 25m long and is at an angle of 20 degrees to the horizontal. The skateboarder has a velocity of 12.2m/s at the bottom of the ramp.
Calculate
i) the average...
Homework Statement
A gun of mass 500Kg fires a shell of mass 2Kg with a muzzle velocity of 500m/s.
Calculate:
i) the velocity of recoil of the gun
ii) the force required to stop the gun in a distance of 0.25m
Homework Equations
The Attempt at a Solution
i)I got the velocity of...
Exam coming soon, need urgent help with this question!
Homework Statement
A body leaves a point A and moves in a straight line with a constant velocity of 40m/s. Ten seconds later another body which is at rest at A is given an accelleration of 2m/s[SIZE="1"]2 and moves in the same direction...