What average mechanical power (in w) must a 64.5 kg mountain climber generate to climb to the summit of a hill of height 285 m in 49.0 min? note: due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the power that must be produced by the climber's body.

61.275 W

Explanation:

Given

Mass of climber

Height to climb

Time taken

Now Using  Work-energy Theorem work done is given by

Now  Average Mechanical Power is given by

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be