Answer:
The bicyclist goes at 5 m/s
Explanation:
Motion With Constant Acceleration
It's a type of motion in which the velocity of an object changes uniformly in time.
The equation that rules the change of velocities is:
[tex]v_f=v_o+at[/tex]
Where:
a = acceleration
vo = initial speed
vf = final speed
t = time
It's given a bicyclist is traveling at v0=+25 m/s and decelerates at [tex]a=-4\ m/s^2[/tex]. We are required to calculate the speed after t=5 seconds.
Applying the formula:
[tex]v_f=25+(-4)*5[/tex]
[tex]v_f=25-20=5[/tex]
[tex]v_f=5\ m/s[/tex]
The bicyclist goes at 5 m/s
