a 2000kg car initially traveling at a speed of 15 m/s is accelerated by a constant force of 10000 n for 3 seconds. the new speed of the car is
1 answer:
Mass of the car (m) = 2000 Kg Initial velocity (u) = 15 m/s Force (F) = 10000 N Time (t) = 3 s Let the acceleration be a. By using the formula, F = ma, we get, 10000 N = 2000 Kg × a or, a = 10000 N ÷ 2000 Kg or, a = 5 m/s^2 Let the final velocity be v. By using the formula, v = u + at, we get, v = 15 m/s + 5 m/s^2 × 3 s or, v = 15 m/s + 15 m/s or, v = 30 m/s
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