This question is all about kinetic energy.
Kinetic Energy = 0.5 * mass * velocity^2
Firstly we must assume that no energy is lost to heat and sound, so that kinetic energy is constant throughout the contact.
The initial kinetic energy is all in the 2kg metal ball. Using the above formula we find that the energy is 0.5 * 2 * 3^2 = 0.5 * 2 * 9 = 9 J
The final kinetic energy must be the same (because of our assumption). The metal ball has a kinetic energy of 0.5 * 2 * 1^2 = 1 J, so the wooden ball must have the remainder, which is 8 J.
8 = 0.5 * 1 * velocity^2
velocity^2 = 16
velocity = square root of 16
velocity = 4 m/s
What the flip??? I don't get that.
Speed is a scalar, velocity is a vector. Two objects moving at the same speed but in opposite directions will have opposite velocities. If the velocity of the elevator going up is v, the velocity of the elevator going down will be -v.
Nothing. It continues to propagate at the speed of light, and is not diffracted or distorted except by negligible gravitational effects.
yes but if they are going down road
A water-going vessel, such as a boat or ship.
Velocity as opposed to speed is a vector and is therefore much more useful. For example when driving in a car your speedometer tells you your speed in Mph or KMph. This however does not give you information on where you are going, it only tells you how fast. You could be going north, south, east or west. Velocity on the other hand is a vector, which means it gives you direction and magnitude. So you know the car's speed and direction. Therefore velocity is more important in describing how a storm is moving because it tells you where the storm is going and how fast it is going.
Since momentum equals mass times velocity, the metal ball's momentum is 2N/s (Newton seconds).
A metal bat will hit the hardest because metal is 85% stronger than a wooden bat.
metal is actually harder and that is the reason the MLB does not use metal bats because they propel the ball at a significantly faster speed. - Clay
Wooden golf ball? Not a lot i'd imagine.
The Venitian Wooden taxi - Venitian GPR Limo
Speed Metal Symphony was created on -19-06-05.
neither speed nor acceleration
Melodic death metal
Accelaration
Hardest metal is diamond because wayyy back when they decided to do test. They take car of diamond and ran it to a metal wall at the speed of light. The brick wall dissolved. Then they took a metal car and ran it into diamond wall at speed of light. Car dissolved. They then took speed of light car and drove it into wall made of metal at the speed of diamond. The earth shook but everything dissolved. Then they took diamond wall and drove it into a speed of metal wall and created muffin. This concluded that diamond is the hardest metal
Steam does speed up the rust of shower parts. Water on metal can speed up rusting of metal parts.
it is true that photosynthesis continues to increase with higher temperatures because it makes the process speed up.