Answer:
14.6 m/s
Explanation:
Momentum is conserved in the north:
m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂
After the collision, they stick together, so v₁ = v₂ = v.
m₁ u₁ + m₂ u₂ = (m₁ + m₂) v₂
(980 kg) (0 m/s) + (1500 kg) u = (980 kg + 1500 kg) vᵧ
1500 u = 2480 vᵧ
Momentum is conserved in the east:
m₁ u₁ + m₂ u₂ = (m₁ + m₂) v₂
(980 kg) (22.3 m/s) + (1500 kg) (0 m/s) = (980 kg + 1500 kg) vₓ
21854 = 2480 vₓ
vₓ = 8.81 m/s
The angle of v is 45.0°, so vᵧ = vₓ.
1500 u = 2480 (8.81 m/s)
u = 14.6 m/s
An object's motion Gravitational potential is related
Answer:
Water stay in the bucket if the bucket is spin upside down and fast because due to centripetal force.
Explanation:
When the bucket is at highest point in the circular motion then there will be three forces work centripetal force in upward direction ann normal and weight will work in downward direction.
By newton law,
centripetal force=weight + normal force.
If the water will stay in the bucket in upside direction then there will be normal force is positive which means the centripetal force is greater than weight.
And to increase the centripetal force velocity should be greater because it depends on velocity.
The practical application of centripetal force are discussed below:
(a) Turning of the car on a banked road or in circular track.
(b) Revolution of the earth around the sun.
That's true.
Magnets attract some metals such as iron, nickel, etc.
Hope this helps~
Answer:
precipitation is the answer..
Explanation:
precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.