Answer:
The gravitational force is significantly constant.
Explanation:
The gravitational force is expressed as:
F= G*M*m/d^2
G= Gravitational constant
M= in this case it is the mass of the planet
m= mass of the rock
d= distance of the rocks from the ground (suppose both at the same height for better comparison)
At the same time, we know that the force that each rock experiences is equal to the product of the mass due to acceleration:
F=m*a
We can match both expressions for F:
G*M*m/d^2 = m*a
we simplify m, and we obtain that the acceleration is independent of the mass of the attracted bodies:
a= G*M/d^2
We could determine the acceleration using this formula
Given from the question v₀ = 23 m/s, v₁ = 0 (the car stops), t = 5 s
plug in the numbers
a = -4.6
The acceleration is -4.6 m/s²
W = F * s
Here, F = 50 N
s = 15 m
Substitute their values,
W = 50 * 15
W = 750 J
In short, Your Answer would be 750 Joules
Hope this helps!
Answer:
You should use this for work related questions :/
