Question

The mass of a high speed train is 4.5×105 kg, and it is traveling forward at a velocity of 8.3×101 m/s. Given that momentum equals mass times velocity, determine the values of m and n when the momentum of the train (in kg⋅m/s) is written in scientific notation. Enter m and n, separated by commas.

Answer 1

Answer : The value of momentum is
`3.735* 10^7kg.m/s` and m = 3.735 and n = 7

Explanation : Given,

Mass of high speed train =
`4.5* 10^5kg`

Velocity of train =
`8.3* 10^1m/s`

Formula used :

`p=mv`

where,

p = momentum

m = mass

v = velocity

Now put all the given values in the above formula, we get:

`p=(4.5* 10^5kg)* (8.3* 10^1m/s)`

`p=3.735* 10^7kg.m/s`

Therefore, the value of momentum is
`3.735* 10^7kg.m/s` and m = 3.735 and n = 7