Respuesta :
Answer:
9.81 N Downward
Explanation:
The Net force acting on a body that falls freely is the weight of that body.
F = W.
Where F = net force
Weight: This can be defined as the force acting on an object due to gravity.
It can be expressed as
W = mg................. Equation 1
Where W = weight of the ball, m = mass of the ball, g = acceleration due to gravity.
Given: m = 1 kg,
Constant: g = 9.81 m/s²
Substitute into equation
W = 1(9.81)
W = 9.81 N.
Hence the net force acting on the ball = 9.81 N Downward
Answer: 9.81N
Explanation:
According to newton's second law, Force = mass×acceleration i.e F = ma
Since the it is a free fall, the body is under the influence of gravity. The acceleration of the body will become acceleration due to gravity i.e +g
Force acting on the body will become F = mg
Given m = 1kg and g = 9.81m/s²
F = 1×9.81
F = 9.81N
The net force acting on the body is 9.81N
Note that g is positive because the body is coming downwards