4. Kinetic or potential--a painting hanging on a wall in a frame? kinetic potential
1 answer:
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To solve this problem it is necessary to apply the concepts related to Newton's second Law and the force of friction. According to Newton, the Force is defined as
F = ma
Where,
m= Mass
a = Acceleration
At the same time the frictional force can be defined as,
Where,
Frictional coefficient
N = Normal force (mass*gravity)
Our values are given as,
By condition of Balance the friction force must be equal to the total net force, that is to say
Re-arrange to find acceleration,
Therefore the acceleration the horse can give is
Answer:
The magnitude is "3.8 m/s²", in the upward direction.
Explanation:
The given values are:
Mass,
m = 88 kg
Scale reads,
T = 900 N
As we know,
⇒
On substituting the given values, we get
⇒
⇒
Now,
⇒
On substituting the given values in the above equation, we get
⇒
On subtracting "862.4" from both sides, we get
⇒
⇒
⇒
⇒ (upward direction)