Problema Solution
a driver is driving his car at 35 mph. he accelerates at the rate of 3 mph every 2 seconds. how fast will he be traveling after accelerating for 7 seconds?
Answer provided by our tutors
let
V= Final Velocity
V0 = 35 mph Initial Velocity
a = 3 mph every 2 seconds acceleration
t = time in seconds
V = V0 + (t/2)*a
V = 35 + (3/2)t
for t = 7 s we have
V = 35 + (3/2)*7
V = 45.5 mph
click here to see the step by step calculation:
after 7 seconds the speed of the car will be 45.5 mph.