Answer:
The gravitational potential energy is 314 J.
(A) is correct option.
Explanation:
Given that,
Mass of dog = 4 kg
Height = 8 m
We need to calculate the potential energy
Using formula of potential energy
m = mass
g = acceleration due to gravity
h = height
Put the value into the formula
Hence, The gravitational potential energy is 314 J.
1.06 metres per second squared
since friction acts against foward force
20 N - 4 N = 16 N
use Newtons 2nd law F=ma Solve for a:
a= F÷m
= 16 ÷ 15
= 1.06 metres per second squared
It is the heart
if not im sorry
kya faltu sawal h repetitive g=10N/kg
WE NEED ANSWER CHOICES