A golfer hits a ball and gives it an initial velocity of 40 m/s, at an angle of 30 degrees above the horizontal. A) how long does the ball stay in the air? (Answer is 4.08 sec)

B) how far horizontally (the range) does the ball travel before hitting the ground? (Answer 141 m)

I need help with getting the work. If y’all could explain, that would be so helpful and thank you.

(a) The ball will stay in the air for 4.08 s.

(b) The ball travels 141 m horizontally before hitting the ground.

This is a projectile motion problem, to solve the problems above, we need to use the formula of (a) Time of flight and (b) Range.

(a)

⇒ Formula

⇒Where:

From the question,

⇒Given:

⇒Assuming:

⇒Substitute these values into equation 1

Also,

(b) For Range

⇒ Formula

⇒Substitute these values above into equation 2

Hence, (a) The ball will stay in the air for 4.08 s (b) The ball travels 141 m horizontally before hitting the ground

Learn more about projectile motion here: link

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete