Question

A roller coaster car moving at a velocity of 30 meters/second has a momentum of 2.5 _ 104 kilogram meters/second. What is its mass?

Answer 1

Momentum is described as the result of the calculation of mass multiplied by that thing's velocity. 

In equational formula we can write it: 

P (momentum) = m(mass) * v(velocity) 

so to find the mass, revert the equation: 

P = m v 
m = P / v 

now for the value entry, 

m = 2.5 * 10^4 kgm/s / 30 m/s 

m = 8,3 * 10^2 kilograms 


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