Using the impulse-momentum theorem and taking this down as positive, we will get:
FΔt = Δp
F = Δp / Δt
= m(v - v₀) / t
= 0.056kg [13m/s - (- 20m/s) / 0.00125s
= 1478.4 N when properly rounded off is the answer we are looking for in this problem.
1) 6 degrees per second ( you can convert it from degrees it that's not what you're looking for)
2) .47 cm per sec
Answer:
Explanation:
<u>Work
</u>
The work done by an external force F when moving an object by a distance X parallel to its direction is
The second Newton's law gives us the net force acting on an object of mass m which is being moved at an acceleration a:
Replacing the last equation into the first equation
And solving for a
There seems to be some kind of mistake in the data provided, we'll use it anyway
It's a very small value as compared to the dimensions of the rest of the problem.
Answer:
Explanation:
Given
Diameter of CD
radius
mass of CD
Tangential velocity
music detected at
Moment of Inertia of disc
Work done is equal to change in kinetic Energy of CD
where angular velocity
Answer:
it represents group 2 and also it represents the group 3 stars
Explanation:
because i just took it and got it correct.