Answer:

The acceleration and force can be calculated in the following way

Explanation:

We've been given:

• M (mass) = 3000 kg
• u (initial velocity) = 54 km/hr = 15 m/s
• v (final velocity) = 90 km/hr = 25 m/s
• t (time) = 15 s

We know that from first equation of motion,

v = u + at

⇒ [tex]\frac{v- u}{t}[/tex] = a - (1)

putting all the given values in equation (1)

⇒ a = [tex]\frac{25-15}{15}[/tex] [tex]m/s^{2}[/tex]

⇒ a = 0.66 [tex]m/s^{2}[/tex]

Using equation F = Ma,

⇒ F = 3000 * 0.66 N

⇒ F = 1980 N

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