The student went for a ride on a bicycle half of the way, he traveled at a speed of 12 km / h.
| February 7, 2021 | education
The student went for a ride on a bicycle half of the way, he traveled at a speed of 12 km / h. The second half of the way, he rode at a speed of 8 km / h, what is his average speed along the entire path.
To find the value of the average speed of a student on a bicycle ride, we use the formula: Vav = S / (t1 + t2) = 1 / (1 / 2Vn + 1 / 2Vk).
Variables: Vн – the student’s initial speed on a bicycle (Vн = 12 km / h); Vк – the final speed of the student (Vк = 8 km / h).
Calculation: Vav = 1 / (1 / (2 * 12) + 1 / (2 * 8)) = 9.6 km / h.
Answer: The average speed of a student on a walk was 9.6 km / h.
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