Answer:
Explanation:
Given
initial angular velocity is
when motor is turned of it started decelerating with angular acceleration
angle turned before coming to halt
here final angular velocity is zero
No of revolutions will be
Answer:
the normal force on the rock acts perpendicular to the bowl's surface.
Explanation:
As we know that Normal force is the reaction force of two contact surfaces which always act perpendicular to the contact surfaces
Here we know that the rock is moving inside the bowl
So Normal force on the rock must perpendicular to the surface of the bowl which always passes through the center of the bowl.
Since the rock is moving in vertical plane so it must have two acceleration
1) Tangential acceleration which will increase the magnitude of the speed along the tangential path
2) Centripetal acceleration which will change the direction of the rock
So here only correct option will be
the normal force on the rock acts perpendicular to the bowl's surface.
Answer:
4058.48594 m/s
Explanation:
M = Mass of Mars =
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
= Initial velocity = 2910 m/s
= Final velocity
m = Mass of satellite
= Initial distance of satellite =
= Final distance of satellite =
The kinetic and potential energy of the system is conserved
Final velocity is 4058.48594 m/s