A system consists of a disk rotating on a frictionless axle and a piece of clay moving toward it, as shown in the figure above.
1 answer:
You might be interested in
Answer:
The time taken to get the shuttle is 6.91 minutes.
Explanation:
Given that.
Mass of an astronaut,
Distance between astronaut and shuttle, d = 48.1 m
Mass of the camera,
Speed of camera, v = 12 m/s
We need to find the time taken by the astronaut to reach her shuttle. Both shuttle and astronaut are at rest, their initial velocities will be equal to 0. Using the conservation of linear momentum as :
The time taken to get the shuttle is given by :
or
t = 6.91 minutes
So, the time taken to get the shuttle is 6.91 minutes.
Answer:
r = 2.8524 x10⁷ m = 28524 km
Explanation:
First, we calculate the angular speed of the satellite:
Now, we use the formula for the gravitational force. Since gravitational force will be acting as the centrifugal force due to circular motion. Therefore,
where,
F = Gravitational Forc = 105 N
m = mass of satellite = 40.9 kg
v = linear speed of satellite = rω = r(3 x 10⁻⁴ rad/s)
r = radius of orbit = ?
Therefore,
<u>r = 2.8524 x10⁷ m = 28524 km</u>