Recent content by anna_chem

Thank you very much for your help!

So, is it supposed to be cos(theta) = v*vx/(v*vb)? And is vb the velocity of the boat?

So, our instructor helped us with the velocity magnitude. He gave [(5 + 3*cos25)^2 + (3*sin25)^2]^(1/2), is this not correct?

Homework Statement A ship cruises forward at Vs= 5 m/s relative to the water. On deck, a man walks diagonally toward the bow such that his path forms an angle of 25 degrees with a line perpendicular to the boat's direction of motion. He walks at Vm= 3 m/s relative to the boat. What is his...

Homework Statement a student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 7.6 m/s. The cliff is 38 m above a flat, horizontal beach. Find how long it takes to hit the beach, the velocity at impact, and at what angle below the horizontal the...

Thanks for the quick response. So, given that initial velocity is 4.5 m/s and final velocity is 0, then: 4.5^2=0+498a thus a=.0407 m/s^2 Does that look correct?

Homework Statement A hockey puck sliding on a frozen lake comes to rest after traveling 249 m. If its initial velocity is 4.5 m/s, what is its acceleration if that acceleration is assumed constant? Homework Equations V(t)= v(initial) + at d= v(initial)*t + .5at^2 The Attempt at a...