Katie traveled southwest a distance of 4000m on a bicycle in 5400s. what is her velocity? (speed = distance / time)
.074m/s
1.35m/s sw
1.11m/s sw
.74 m/s sw

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 .