Physics: How do I solve this problem?

Question

A pitcher throws a baseball at 90 mph. How much time does it take the ball to reach the batter 60 ft away? Recall that there are 5280 ft in one mile.

If you're able to solve this question, can you please try to show your work on here in any way possible?

Answer 1

1) Convert 90 mph into feet per second (fps).

90 mph * 5280 ft/mile = 475 200 feet per hour

Each hour has 60 minutes * 60 seconds = 3600 seconds per hour.

475 200 / 3600 = 132 fps

2) Use the equation below to determine the time:

speed = distance / time

Since we want to solve for time, rearrange the equation so that time is by itself on the left side:

time = distance / speed = 60 ft / 132 fps = 0.4545 s

Therefore, it takes the ball 0.4545 s to reach the batter who is 60 ft away from the pitcher.