Projectile Motion - Pre-test

• Both Horizontal and Vertical motion are Zero

• Both Horizontal and Vertical motion are 9.8 m/s-2

• Horizontal acceleration is 9.8 m/s-1 and Vertical acceleration is Zero

• Vertical acceleration is 9.8 m/s-1 and Horizontal acceleration is Zero

• a

• b

• c

• d

• Zero

• u

• u Cos0

• u Sin0

• a

• b

• D

• d

A reusable rocket is returning from a space mission and attempting to make a controlled landing.

The rocket has a mass of 7,800 kg and is travelling 20m/s horizontally when the thrust is changed to 90,000 Newtons, which diagram correctly shows the new trajectory of the rocket?

• a

• b

• c

• d

A plane drops emergency aid rations to the Red cross while travelling at 200 km/h at a constant altitude.

The time to impact is found to be 15 seconds.

Calculate the plan's altitude

A projectile is fired at 60m/s-1 at an angle of 30 degrees from the horizontal.

Calculate the vertical component of its motion