Acannon fires a cannonball 500.0 m downrange when set at a 45.0o angle. at what velocity does the cannonball leave the cannon?

v = 70 m/s

Explanation:

Range on the cannon ball is given as

here the angle of the projection of the ball is given as 45 degree

now we know that if the velocity of the ball is "v" then its two components will be given as

so here time of flight of the motion is given as

also the range is given as

now plug in all data in this equation

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

anchor = archer //