Question

Какую скорость приобретет велосипедист через 5 секунд после начала торможения, если его начальная скорость 10м/с, а ускорение при торможении составляет 1,2 м/с2?

Answer 1

V=V0-at=10м/с-5с*1.2м/с2=4м/с

Answer 2

Calculation of the Final Velocity

To calculate the final velocity of the cyclist after 5 seconds of braking, we can use the following formula:

Final velocity = Initial velocity + (Acceleration * Time)

Given: - Initial velocity (u) = 10 m/s - Acceleration (a) = -1.2 m/s^2 (negative because it represents deceleration) - Time (t) = 5 seconds

Substituting the values into the formula, we get:

Final velocity = 10 m/s + (-1.2 m/s^2 * 5 s)

Calculating the result:

Final velocity = 10 m/s - 6 m/s = 4 m/s

Therefore, the cyclist will have a final velocity of 4 m/s after 5 seconds of braking.