Answer: 4 s
Explanation: In order to solve this problem we have to use tge following kinematic expression:
vf=vo+a*t; where vf and vo are the final and initial speed. a is the average acceleration and t,the time.
then we have:
t= (160-100) m/s/(15 m/s^2)= 4 s
Answer:
4.0 s
Explanation:
Given data
Initial speed (V₀): 100 m/s
Final speed (vf): 160 m/s
Acceleration (a): 15 m/s²
Time (t): ?
In an uniformly accelerated motion, the acceleration is equal to the change in the speed divided by the time elapsed.
a = Δv/t
t = Δv/a = (vf - V₀)/a = (160 m/s - 100 m/s)/ (15m/s²) = 4.0 s
