27b. you're in an airplane that flies horizontally with speed 1000 km/h (280 m/s) when an engine falls off. ignore air resistance and assume it takes 30 s for the engine to hit the ground. what is the horizontal distance that the aircraft engine moves during its fall

8400m

Explanation:

The engine that falls off would have the same constant horizontal velocity as the airplane's when if falls off if we ignore air resistance. So it would have a horizontal velocity of 280m/s for 30seconds before it hits the ground.

Therefor the horizontal distance the engine travels during its fall is

280 * 30 = 8400m

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

a=d/t

a="triangle"v/t

explanation:

a = acceleration