A wave has a period of 2s and a wavelength of 5m. What is the speed of the wave?
1 answer:
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Answer:
Explanation:
We have:
diameter of the wheel,
weight of the wheel,
mass of hanging object to the wheel,
speed of the hanging mass after the descend,
height of descend,
(a)
moment of inertia of wheel about its central axis:
Answer:
Acceleration of the crate is 0.362 m/s^2.
Explanation:
Given:
Mass of the box, m = 40 kg
Applied force, F = 15 N
Angle at which the force is applied, = 15°
We have to find the magnitude of the acceleration.
Let the acceleration be "a".
FBD is attached with where we can see the horizontal and vertical component of force.
⇒ and ⇒
⇒ ⇒
⇒ Applying concept of forces.
⇒
⇒
⇒ <em> ...Newtons second law Fnet = ma</em>
⇒
⇒ Plugging the values.
⇒ <em>...f is the friction which is zero here.</em>
⇒
⇒
Magnitude of the acceleration of the crate is 0.362 m/s^2.
