Answer
Give that,
mass of two student m = 3.10 kg
distance from the axis of the rotation is r = 1 m
angular speed ω = 0.754 rad /s
moment of inertia I = 3.10 kg m²
position from the rotation of the axis is r_1 = 0.29 m
Total moment of inertia I ' = I + 2 m r²
= 3.1 +2 x 3.1 x( 1)^2
= 9.3 kg m²
moment of inertia inward horizontally from the position of rotation axis is
I" = I + 2 m r^2
= 3.1 + 2 * 3.1 kg ( 0.29)^2
= 3.62 kg m^2
a ) new angular speed is ω_1 =
=
= 1.94 rad /s
b ) K.E before the system pulls weight inward is
c )K.E after the system pulls weight inward is
Answer:
c is the correct option
Explanation:
Electric field strength is high when electric filed lines are closer together(Represented by red lines in the diagram).
Electric potential is the work done in bringing a unit positive charge from one location to another.
Boyle's law states that the volume of a given mass of gas is inversely proportional to the pressure provided that the temperature remains constant.
Charle's law states that the volume of a given mass of gas is directly proportional to temperature provided that the pressur remains constant.
Answer:
115.32125 m/s
Explanation:
Distance = 70 cm
Angular speed
Angular displacement
Time taken will be
Speed of the bullet would be
The speed of the bulletis 115.32125 m/s