Question

Dario is on a cycling trip . he started at 0 km he is now at a position 20hx(-20km/h) when did he reach each position explain ur reasoning a)10hx(-20km/h). b) 8hx(-20 km/h). c) 0 km​

Answer 1

To find when Dario reaches each position, divide the displacement by the velocity. He reaches 10 km in 30 minutes, 8 km in 24 minutes, and 0 km at the start of the trip.

Step-by-step explanation:

To determine when Dario reaches each position, we can use the formula: time = displacement / velocity. In this case, the velocity is -20 km/h because he is moving in the opposite direction.

a) To find when he reaches 10 km, we can use the formula: time = 10 km / -20 km/h = -0.5 h or 30 minutes.

b) To find when he reaches 8 km, we can use the formula: time = 8 km / -20 km/h = -0.4 h or 24 minutes.

c) To find when he reaches 0 km, we can use the formula: time = 0 km / -20 km/h = 0 h or 0 minutes. Since his starting position is 0 km, he reaches this position at the beginning of his trip.