Question

The driver of a 1.58 10 kg car is traveling cast at 10 ms and increases its speed to 30 mis east over 15

seconds. What is the initial and final momentum of the body?

Answer 1

p₀ = 1.53 10⁴ kgm / s, p_f = 4.74 10⁴ kg m / s

Step-by-step explanation:

The moment is defined by

p = mv

the initial moment is

p₀ = m v₀

indicate the mass of the car m = 1.58 10³ kg and its initial velocity v₀ = 10 m/s

p₀ = 1.58 10³ 10

p₀ = 1.53 10⁴ kgm / s

the final moment is

indicate that it increases its speed at v = 30 m/s, in a time of t = 15 s

we look for the moment

p_f = m v

p_f = 1.58 10³ 30

p_f = 4.74 10⁴ kg m / s