A football player kicks a ball with an initial velocity of 25 m/s at an angle of 53° above the horizontal. What will be the vertical component of the initial velocity of the ball? Round off your answer to 2 decimal places.

A football is kicked at an angle of 25 degrees and travels 50 yards. If the football is kicked at the same speed, what other angle will allow the football to travel 50 yards?

A 12 kg object has a momentum of 20 kg∙m/s toward the east. What is the object’s speed? Round off to 2 decimal places.

1 answer

In case you don't know which formulas to use, wikipedia has a nice article on Trajectory, which will explain things quite well.