Question

pls solve thes problems

Answer 1

when we raise a body upto height H

Then Potential energy=MgH

here,

m=20gm

height=13m

but mass should be in kg
$potential \: energy = 20 \times {10}^{ - 3} \times 10 \times 13$
–»0.2×13

–»2.6Joules