Answer:
a) Initial angular speed = 117.13 rad/s
b) Time elapsed = 141.92 s
Explanation:
a) We have equation of motion v² = u² + 2as
Final angular speed, v = 137 rad/s
Angular acceleration, a = 0.140 rad/s²
Displacement,s = 2870 x 2π = 18032.74 rad
Substituting
v² = u² + 2as
137² = u² + 2 x 0.140 x 18032.74
u² = 13719.83
u = 117.13 rad/s
Initial angular speed = 117.13 rad/s
b) We have equation of motion, v = u +at
137 = 117.13 + 0.140 t
t = 141.92 s
Time elapsed = 141.92 s
Why is it always balloons?
anyways so the balloon volume goes somewhere else when it shrinks because the balloon is losing air i think
Answer:
Moon and Earth both exert equal force on each other
Explanation:
As we know by the universal law of gravitation the force of gravitation is given by the formula
This is the mutual gravitational force on Earth and Moon by which they attract each other.
So here the force of attraction due to Earth on Moon as well as the Force due to Moon on Earth both will be same in magnitude and opposite in direction.
So here both forces is given as
Moon and Earth both exert equal force on each other