Two gears are connected. gear a has 10 teeth, while gear b has 40 teeth. if gear b turns at 10 rpms, how fast will gear a turn?

w₁ =  40 rpm

Explanation:

Number of teeth of gear A = 10

Number of teeth of gear B =  40

Speed of gear B = w₂ = 10 rpm

Speed of gear A = w₁ = ?

Gear ratio is given by:

N₁/N₂ = w₂ / w₁

w₁ = N₂/N₁ * w₂

⇒ w₁ = 40/10 * 10

⇒ w₁ =  40 rpm

he kicked it 10 feet straight up into the air? i think this works.