Asst8 rand

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course phy 201

4/5 630pm

A projectile leaves the edge of a table and, while traveling horizontally at a constant 34 cm/s, falls freely a distance of 78 cm to the floor. If its vertical acceleration is 980 cm/s2, how long does it take to fall and how far does it travel in the horizontal direction during the fall?Vertical:

v0=0m/s

a=980cm/s

ds=78cm

vf^2=2(980)78

vf=sqrt152880

vf=390cm/s

vAve=390/2=195cm/s

dt=78/195

dt=.4s

Horizontal:

v0=34cm/s

ds=.4*34=13.6cm

&#This looks good. Let me know if you have any questions. &#