Kenna has a mass of 30 kilograms. What's her weight in newtons? Assume that acceleration due to gravity is 9.8 N/kg.
1 answer:
Answer:
294 N
Explanation:
The weight of an object is the gravitational force exerted by the Earth on the object.
The direction of this force is always towards the Earth's centre, while the magnitude is given by:
where
W is the weight
m is the mass of the object
g is the acceleration due to gravity
Here we have:
m = 30 kg is the mass of the object
g = 9.8 N/kg is the acceleration due to gravity
So, the weight of the object is
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Answer:
Magnitude the net torque about its axis of rotation is 2.41 Nm
Solution:
As per the question:
The radius of the wrapped rope around the drum, r = 1.33 m
Force applied to the right side of the drum, F = 4.35 N
The radius of the rope wrapped around the core, r' = 0.51 m
Force on the cylinder in the downward direction, F' = 6.62 N
Now, the magnitude of the net torque is given by:
where
= Torque due to Force, F
= Torque due to Force, F'
Now,
The net torque comes out to be negative, this shows that rotation of cylinder is in the clockwise direction from its stationary position.
Now, the magnitude of the net torque: