The pony express was a popular method of moving the mail quickly in the mid-1800s. suppose a pony's momentum is calculated to be
the mass of the pony is 450 kg. what is the magnitude of the pony's velocity?
a) 16 km/hr
b) 320 km/hr
c) 630 km/hr
d) 160 km/hr

Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.