angelxdlt
contestada

A car can go from 0m/s to 27 m/s in 4.5 seconds. If a net force of 6,600 N acted on the car , what is its mass? (Hint: solve for acceleration 1st)

Respuesta :

Answer:

The answer is 1100kg.

Explanation:

First, you have to find the acceleration using the formula, a = (v-u)/t where v is final speed, u is initial speed and t is time :

[tex]a = \frac{v - u}{t} [/tex]

[tex]a = \frac{27 - 0}{4.5} [/tex]

[tex]a = 6m {s}^{ - 2} [/tex]

Next, you have to apply force formula, F = m×a where m is mass :

[tex]F = m \times a[/tex]

[tex]6600 = m \times 6[/tex]

[tex]m = 6600 \div 6[/tex]

[tex]m = 1100kg[/tex]