Velocity is measured in metres per second, to find how many metres a body has travelled you need t know the length of time it was moving for.
If a body moves at 10 metres per second for 5 seconds, how far does it travel?
It goes 10 metres every second, so in 5 seconds it must go 5 times 10 metres; 50 metres.
You need to multiply the velocity by the time taken. (m/s) X s = m.
You can't. You need either the final velocity or the acceleration of the object as well, and then you can substitute the known values into a kinematics equation to get the initial velocity.
Decrease ..
Without distance, you have to know time, initial velocity, and acceleration, in order to find final velocity.
Divide the distance traveled by the product of the diameter and pi.
You can't. The mass is irrelevant to velocity. You need the distance.
You can only know the distance for sure if acceleration or deceleration is constant. Add the start and end velocities and divide by two and then multiply by the time to get your distance.
You can't. You need either the final velocity or the acceleration of the object as well, and then you can substitute the known values into a kinematics equation to get the initial velocity.
Decrease ..
You cannot.
Without distance, you have to know time, initial velocity, and acceleration, in order to find final velocity.
Divide the distance traveled by the product of the diameter and pi.
Velocity is defined as distance traveled (directed distance, to be precise), divided by time. Informally, it tells you how fast something goes.
You cannot.
You can't. The mass is irrelevant to velocity. You need the distance.
To find the acceleration if the time is not given, you will need to know the velocity and the distance. Then, use this equation: d = vt + (1/2)at2 to solve the problem by plugging in your numbers for the distance and the velocity.
Distance = time * average speed (velocity) Average speed = Distance/time
The equation that does involve time is.. v² = v₀² + 2ad