Recent content by Joe26

Homework Statement "If instantaneous velocity = 0, it is possible to have a non-zero acceleration." Why is this true? I'm having a hard time understanding this. Homework Equations The Attempt at a Solution

Got it, thanks. W=mg...find m using weight and use f=ma to find acceleration.

so, how would i be able to find the acceleration?

sorry that should be above the horizontal

im not sure if I quite follow. Yes, force of gravity (1300N) is exerted in the y-direction: F1y= 310sin20 N=1300-310sin20 sumFy=N+F1y-1300N=0 I'm not sure what is wrong. Can someone help me out?

Homework Statement A 1,300-N crate is being pulled across a level floor at a constant speed by a force of 310 N at an angle of 20.0° above the horizontal. If coefficient of kinetic friction is 0.207, find the acceleration of the crate.Homework Equations Fk= (uk)(N) F=maThe Attempt at a...

thank you for your help, i split the problem into two parts and got my answer! what i did first was to find the time it takes it get from velocity=-5m/s to velocity=0m/s (vi=-5m/s; vf=0m/s). Then i used the displacement formula to find distance in the negative direction. After that, i found...

Homework Statement An object moves with constant acceleration 4.60 m/s2 and over a time interval reaches a final velocity of 10.0 m/s. If its initial velocity is −5 m/s, what is its displacement during the time interval? What is the total distance travelled? a=4.60m/s^2 vi=-5 m/s...