Recent content by bobby_burke

A boat sails in a straight line 20km [N30°E]. What are the components of its displacement to the north and east? the answers given are 17 km [N] and 10 km [E], but using the formulae Ay = A Sin σ and Ax = A Cos σ, I've got the values mixed up... could it be because I've drawn it wrong? I've...

thanks guys, you have been a big help tonight

for time i broke the equation down into: 8.5 m/s = t .5(1.8m/s^2) and my time was 9.4 seconds... sound right?

The Easter Bunny runs along a straight and narrow path with a constant speed of 25 m/s. he passes a sleeping tortoise, which immediately starts to chase the bunny with a constant acceleration of 3 x 10^-3 m/s^2. How long does it take the tortoise to catch the bunny? (Answer in hours) ok.. so...

what's the acceleration? it doesn't state it in the equation. or is it -9.8 m/s^2

possibly the sun's energy

A bullet is fired straight up with a muzzle velocity of 460 m/s. how long will it take it to reach its highest point and how high will that be? (The air resistance may be neglected) i've been busting my brain over this question for almost an hour, and i just can't find a formula that will...