Question

Велосипедист начинает двигаться из состояния покоя с ускорением 0,2м/с.по истечению какого времени скорость велосипедиста будет равна 2м/с?

Answer 1

A=U-U0/t
t=U-U0/a
t=2м/с/0,2м/с^2=10с

Answer 2

$a= \frac{v- v_{0} }{t} \\ t= \frac{v- v_{0} }{a} \\ t= \frac{2-0}{2}=1$

Answer 3

Calculation of Time for the Cyclist to Reach a Speed of 2 m/s

To calculate the time it takes for the cyclist to reach a speed of 2 m/s, we need to use the equation of motion:

v = u + at

Where: - v is the final velocity (2 m/s) - u is the initial velocity (0 m/s, since the cyclist starts from rest) - a is the acceleration (0.2 m/s^2, as given in the question) - t is the time

We can rearrange the equation to solve for time:

t = (v - u) / a

Substituting the given values:

t = (2 m/s - 0 m/s) / 0.2 m/s^2

Simplifying the equation:

t = 10 seconds

Therefore, it will take the cyclist 10 seconds to reach a speed of 2 m/s.