Answer to Question #160959 in Mechanics | Relativity for jireh

Question #160959

a ball is thrown from the top of 10m high building with horizontal speed of 5m/s. (a) calculate the time it takes to drop to the floor, (b) its horizontal displacement at the point when it reaches the floor


1
Expert's answer
2021-02-03T16:11:57-0500

a)

y=12gt2,y=\dfrac{1}{2}gt^2,t=2yg=210 m9.8 ms2=1.43 s.t=\sqrt{\dfrac{2y}{g}}=\sqrt{\dfrac{2\cdot10\ m}{9.8\ \dfrac{m}{s^2}}}=1.43\ s.

b)

x=v0t=5 ms1.43 s=7.15 m.x=v_0t=5\ \dfrac{m}{s}\cdot1.43\ s=7.15\ m.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment