A) \[12m/{{s}^{2}}\]
B) \[1000m/{{s}^{2}}\]
C) \[2000m/{{s}^{2}}\]
D) \[1500m/{{s}^{2}}\]
Correct Answer: D
Solution :
[d] \[v-u=at\] \[-10-20=0.02\times a\] \[a=(-)\,1500\,m/{{s}^{2}}(retardation)5m\] \[u=2\times 10\times 20v=\sqrt{2\times 10\times 5}\] \[\downarrow u=20m/sv=-10m/s\uparrow \]You need to login to perform this action.
You will be redirected in
3 sec