A boy having a mass of 60 kg holds in hands a school bag of weight 40 N . With what force the floor will push up on his feet? plz answer with steps
Answers
AnswEr :
The force of the floor will push up on his feet = 640 N.
Explanation :
We are given with the mass of a boy as well as weight of a school bag, that is,
- Mass of a boy = 60 kg.
- Weight of a school bag = 40 N.
We have to find out the force of the floor will push up on his feet.
We know that weight is also a force which we exert on ground, such that,
Weight = Mass × Acceleration due to gravity..
And we also know the value of acceleration due to gravity, that is,
Acceleration due to gravity, g = 10 m/².
Now,
As we are given with the mass of a boy and acceleration due to gravity we know the required formula, that is,
⟶ F = mg.
Substituting the given values in the formula,
⇒ F = 60 × 10
⇒ F = 600
Now,
Total force exerted on ground by a boy,
⇒ F = 600 + 40
⇒ F = 640
Hence, force of the floor will push up on his feet is 640 N.
Qᴜᴇsᴛɪᴏɴ ;-
❥︎ A boy having a mass of 60 kg holds in hands a school bag of weight 40 N . With what force the floor will push up on his feet?
- = 60kg × 10m/s² = 600 N
- = 40 N
From Newton's Third Law, to every action there is an equal and opposite reaction.
The floor will push on his feet with a force of 640 N.