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Sully is riding a snowmobile on a flat, snow-covered surface with a constant velocity of 10 meters/second. The total mass of the snowmobile, including Sully, is 280 kilograms. If Sully accelerates to a velocity of 16 meters/second over 10 seconds, what's the force exerted by the snowmobile to accelerate? Use [tex]$F = ma$[/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: $v_i = 10 \, \text{m/s}$
- Final velocity: $v_f = 16 \, \text{m/s}$
- Time: $t = 10 \, \text{s}$
- Mass: $m = 280 \, \text{kg}$

**Step 1: Calculate the acceleration**

The acceleration ($a$) is determined by the change in velocity over time:

$$
a = \frac{v_f - v_i}{t} = \frac{16 - 10}{10} = \frac{6}{10} = 0.6 \, \text{m/s}^2.
$$

**Step 2: Calculate the force required for the acceleration**

Using Newton's second law, the force ($F$) is given by:

$$
F = m \times a.
$$

Substitute the values for mass and acceleration:

$$
F = 280 \, \text{kg} \times 0.6 \, \text{m/s}^2 = 168 \, \text{N}.
$$

Thus, the force exerted by the snowmobile to accelerate is $\boxed{168 \, \text{N}}$.

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