Answer:
This second engine fires for 3 s
Further explanation
Acceleration is rate of change of velocity.
a = acceleration (m / s²)v = final velocity (m / s)
u = initial velocity (m / s)
t = time taken (s)
d = distance (m)
Let us now tackle the problem!
Given:
thrust of first engine = F₁ = 6 N
elapsed time of first engine = t₁ = 2 s
thrust of second engine = F₂ = 4 N
Asked:
elapsed time of second engine = t₂ = 2 s
Solution:
We will use Newton's Law of Motion to solve this problem as follows:
Explanation:
