Question

a 7.2 hp motor is used to lift a load at a rate of 2.4m/s. how great a load can it lift at this constant speed? (1 hp=740 W)

Answer 1

Answer:

Work power and energy

Explanation:

★ Given ;

» Power = 7.2 hp = 7.2 × 740 = 5328 Joules

» Speed of pump = 2.4 m / s

★ Load = ??

we know that ;

★ Power = Force ( Load ) × Velocity

» Force = Power / Velocity

= 5328 / 2.4

= 2220 N

★ Load of pump = 2220 N

Hope it helps you