Question

how much is the mass of a man if he has to do 2500 joules of work to climbing a tree 5m tall is equal to 10 M per second square

Answer 1

$\textsf{\huge{\underline{Hello Mate!}}}$

Since work done by man is stored as potential energy when man is at maximum height.

We know very well that,

Potential energy = mass × accelerations due to gravity × height.

Or

U = mgh

2500 J = m(10 m/s²)( 50 m)

2500/50 = m

50 kg = mass

$\textsf{\red{Hence mass of man is 50 kg}}$

$\textbf{Have great future ahead!}$

Answer 2

here is your answer OK ☺☺☺☺☺☺


Work done by a man by climbing a tree = W = 2500 Joules

Height from the ground = h = 5 metres

Gravitational acceleration = g = 10m/s2

To Find:

Mass of the man who has climbed the tree.

Solution:

We know that,

Potential energy (EP) = Work done (W)

and,

EP = mgh

... W = 10m*5

... 2500 = 50m

... 2500/50 = m

... m = 50 kg

... The mass of the man who has to do 2500 Joules of work by climbing a tree at a height of 5 metres is 50 kg