course Phy 201
A projectile leaves the edge of a table and, while traveling horizontally at a constant 37 cm/s, falls freely a distance of 149 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?Given:
Ax = 0
Ay = -9.80 m/s^2
T = 0
X0 = 0
Y0= 0
Vx0= 37 cm/s
Y = -149 m
Unknown:
X = ?
T = ?
Equations:
T = sqrt (2y/ -g) = sqrt (2 (-149 m)) / -9.80 m/s^2
= 5.51 s
X = Vx0 (t)
= 37 cm/s (5.51s) = 203.87 cm or 2.03 m
Good work. This would be correct for a fall of 149 meters.
The fall is only 149 cm. No need to resubmit unless you're unsure of how this would modify the result.