A man of mass 60kg standing inside a lift with an acceleration of 2m/s(square).Find the apparent weight that a man feels(g is 10).
To find the apparent weight that the man feels, we need to consider the net force acting on the man. The net force can be determined by using Newton's second law of motion, which states that the net force is equal to the mass of the object multiplied by its acceleration.
The formula for finding the net force is:
Net Force = Mass x Acceleration
Given:
Mass of the man (m) = 60 kg
Acceleration of the lift (a) = 2 m/s^2
Acceleration due to gravity (g) = 10 m/s^2
First, let's calculate the net force acting on the man:
Net Force = Mass x Acceleration
= 60 kg x 2 m/s^2
= 120 N
Now, let's calculate the weight of the man:
Weight = Mass x Acceleration due to gravity
= 60 kg x 10 m/s^2
= 600 N
The weight of the man is 600 N.
Finally, let's calculate the apparent weight that the man feels inside the lift. The apparent weight is the net force acting on the man:
Apparent Weight = Weight - Net Force
= 600 N - 120 N
= 480 N
Therefore, the man will feel an apparent weight of 480 N inside the moving lift.
↧W=m(g-a)
↥W=m(g+a)