Please help by DRAWING and give the solutions like the one in the picture (the problems are all related.) 1. The same ball is tossed upward at the top of a 80 m tall building at 30m/s. Find the distances covered and the velocities in 1 second intervals. 2. The ball is thrown down from the top of the 80 m tall building at 30 m/s. Find the distances covered and the velocities in 1 second intervals.
Please help by DRAWING and give the solutions like the one in the picture
(the problems are all related.)
1. The same ball is tossed upward at the top of a 80 m tall building at 30m/s. Find the distances covered and the velocities in 1 second intervals.
2. The ball is thrown down from the top of the 80 m tall building at 30 m/s. Find the distances covered and the velocities in 1 second intervals.
1. The same ball is tossed upward at the top of a 80 m tall building at 30m/s. Find the distances covered and the velocities in 1 second intervals.
ball is tossed upward at the top of a 80 m tall building at 30m/s
Initail velocity u=30m/s
Use equation V=u -gt or Snth second = U - g/2(2n-1) .
This equation gives us Snth second distances covered and the velocities in 1 second intervals
so S1 = 30m/s -9.8/2(2-1)=30-4.9x1=25.1m
S2 = 30-4.9(2x2-1)=30 -4.9x3=15.3m so on
S3 = 30-4.9x5= 5.5m S4=30 -4.9x7 .
at after 3 s the particle reaches the top . at attain 0 speed.
we find v= u- gt we get 0=30-9.8t so t=30/9.8=3.06 s
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