Si ambas personas realizan MRU, calcula el tiempo de alcance. Tener en cuenta que al inicio están separados 300 m, además quien está delante lo hace con 54 km/h y el otro va con 72 km/h. Ojo pasar los datos al sistema internacional, obvio​

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .