A) 20m
B) 25m
C) 30m
D) 45m
Correct Answer: D
Solution :
According to question \[v=\frac{u}{2}=u-gt=u-\frac{3}{2}g\]as\[t=1.5s\] \[\Rightarrow \] \[u=30\text{ }m/s\] Again \[h=\frac{{{u}^{2}}}{2g}\] \[\Rightarrow \] \[h=\frac{30\times 30}{2\times 10}\] \[\Rightarrow \] \[h=45\,m\]
You need to login to perform this action.
You will be redirected in
3 sec
