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Select the correct answer.

Sully is riding a snowmobile on a flat, snow-covered surface with a constant velocity of 10 meters/second. The total mass of Sully and the snowmobile is 280 kilograms. If Sully accelerates to a velocity of 16 meters/second over 10 seconds, what is the force applied? Use [tex] F = m \cdot a [/tex], where [tex] a = \frac{v - u}{t} [/tex].

A. 160 N
B. 168 N
C. 248 N
D. 280 N
E. 324 N

Answer :

We are given the following information:

- Initial velocity: [tex]$u = 10\ \text{m/s}$[/tex]
- Final velocity: [tex]$v = 16\ \text{m/s}$[/tex]
- Time taken: [tex]$t = 10\ \text{s}$[/tex]
- Mass: [tex]$m = 280\ \text{kg}$[/tex]

Step 1: Calculate the acceleration using the formula

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

Substitute the given values:

[tex]$$
a = \frac{16 - 10}{10} = \frac{6}{10} = 0.6\ \text{m/s}^2.
$$[/tex]

Step 2: Use the force equation

[tex]$$
F = m \cdot a.
$$[/tex]

Substitute the values of mass and acceleration:

[tex]$$
F = 280 \times 0.6 = 168\ \text{N}.
$$[/tex]

Thus, the force is [tex]$168\ \text{N}$[/tex], which corresponds to answer option B.

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