Answer: 0.56 m/s
Explanation:
hello, there is 25° inclination angle for the chute in the drawing. Thankfully, I know this problem. The conservation of momentum.
so there are X and Y components for the momentum in this problem. The Y component is not conserved as when the coal gets in the cart, the normal force exerted by the surface reduces it to 0.
Now, the X component is definitely conserved here.
so you have the momentum of the cart which is 440*0.5 added to the momentum of the chunk which is 150*0.8*cos(25°), that is the momentum before the coupling between the objects. Afterwards both objects will have the same velocity, so we write the equation like this:
Answer:
because concave mirror is used in them.
hope it helps.
If the object weighs 60N on Earth, then its mass is 6.12 kilograms.
If it weighs 60N on the moon, then its mass is 36.97 kilograms.
Whatever its mass is in one place, it has the same mass in any other place. Mass doesn't depend on location, but weight does.
Most likely answer would be A