A football player kicks a football off a tee with a speed of 21 m/s at an angle of 51 degrees. a. How far is the ball from the football player when it lands? b. How much farther would the ball go if he kicked it with the same speed, but at a 45 degree angle? c. Which ball will land first: the ball kicked at 21 m/s and at a 51 degree angle, or one kicked at 25 m/s and at a 65 degree angle?

13.22

Explanation:

v 154.9= 0.9 length length s little over 154.9cm

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.