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friction
No.
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
The property which resists acceleration (or deceleration) is the mass of the object. We can see this in Newton's second law which states Force = Mass * Acceleration. An object with a high mass will require a much greater force to stop in the same time as a less massive object. For this reason the train would be the most difficult to stop since it has the highest mass.
Momentum is a measure of how much force it takes to stop something in a certain amount of time. If it takes 10 N to stop object A in 30 sec and it takes 15 N to stop object B in 30 sec, then B has more momentum; 50% more momentum.
friction
No.
it depends on the mass of an object
its easy
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
Friction and Drag (air resistance)
The property which resists acceleration (or deceleration) is the mass of the object. We can see this in Newton's second law which states Force = Mass * Acceleration. An object with a high mass will require a much greater force to stop in the same time as a less massive object. For this reason the train would be the most difficult to stop since it has the highest mass.
# weeweresdfsdfsfsdxvxzxcvxcvxcvxewewdsfd {| |- | Slowdown cvxcvzwerwr |}# weeweresdfsdfsfsdxvxzxcvxcvxcvxewewdsfd {| |- | Slowdown cvxcvzwerwr |}# weeweresdfsdfsfsdxvxzxcvxcvxcvxewewdsfd {| |- | Slowdown cvxcvzwerwr |}
Momentum is a measure of how much force it takes to stop something in a certain amount of time. If it takes 10 N to stop object A in 30 sec and it takes 15 N to stop object B in 30 sec, then B has more momentum; 50% more momentum.
Stop printing money.
There is no actual 'brake system' in a ship. If ships wish to stop or slowdown quickly, they reverse the propellors.