Question

1. HMS Queen Elizabeth is the largest warship ever built for the Royal Navy. If its launcher propels an F-35 from rest to a speed of 91.6 m/s in 2.00 s, determine the following:

a. the plane's average acceleration (in m/s²) = 45.8 m/s^2

b. what is the distance the plane moves (in m)?

2. A certain freely falling object, released from rest, requires 2.00 s to travel the last 30.5 m before it hits the ground.

a. Find the velocity of the object when it is 30.5 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.)

2A Answer = -5.45 m/s

b. Find the total distance the object travels during the fall.

I just need help with part b on both questions.

Thank you!

Answer 1

We'll apply the equation of motion.