a body projected vertically up from the top of atower with 19.6m/s takes 5s to reach the ground .find the height of the tower
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Answer:
25.8 meter
Explanation:
body will continue for 2 sec upward after 2sec
- u=0 and hight coverd is 19.2m
- use h=ut+1/2at²
- now we have 3 more sec left
- again use formula in point 2 and calculate total hight by putting the value t=3
- you will get 45 m
- now minus the height coverd in 1st point ... you will get the answer
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