Choice-'b' says the formula for kinetic energy in words.
KE = (1/2) · (M) · (S²)
Answer:
F - w = m a = 2 T - m g net force on man and chair
F = 2 * 368 N = 736 N each rope supports 368 N
a = (736 - 72 * 9.8) / 72 = .422 m/s^2
The net force acting on the car is 65 N to the left
The net force acting on an object is simply defined as the resultant force acting on the object.
From the question given, we obtained the following data:
- Force applied to the right (Fᵣ) = 250 N
- Force applied to the left (Fₗ) = 315 N
- Net force (Fₙ) =?
The net force acting on the car can be obtained as follow:
Fₙ = Fₗ – Fᵣ
Fₙ = 315 – 250
<h3>Fₙ = 65 N to the left </h3>
Therefore, the net force acting on the car is 65 N to the left
Learn more on net force: brainly.com/question/19549734
Answer:
2. at the highest point
Explanation:
For a generic object, the PE (gravitational potential energy) is defined as
PE = mgh
where
m is the mass of the object
g is the gravitational acceleration
h is the height of the object with respect to the ground
From the formula, we see that PE is maximum when h is maximum: so the PE is maximum when the object is at the highest point.