<h2>The forces acting on the body</h2>
Explanation:
When an apple falls from tree , The forces acting are
( i ) Gravitation force acts downwards due to pull of the earth .
( ii ) The force of friction due to air acts upwards
When it rolls down the hill
( i ) The gravitational force due to earth acting downwards
( ii ) The force if friction due to surfaces in contact , acting upwards along the slope of the hill
When we slip on the floor
( i ) The horizontal forward force due to horizontal component of force of reaction by the floor .
( ii ) The frictional force acting in a backward direction , due to surfaces in contact .
F = m · a
In order to accelerate 82 kg upward at the rate of 3.2 m/s², a NET upward force of (82kg · 3.2m/s²) = 262.4 Newtons is required.
But if the object is on or near the surface of the Earth, then there's a downward force of (82kg · 9.8m/s²) = 803.6 N already acting on it because of gravity.
So you need to apply (803.6N + 262.4N) = <em>1,066 Newtons UPward</em>, in order to cancel its own weight and accelerate it upward at that rate.
Answer:
its 30 i did this homeweok
Explanation:
30
