A) 300 N
B) 20 N
C) 400 N
D) 40 N
E) 200 N
Correct Answer: C
Solution :
Resistive force \[\frac{\text{initial}\,\text{kineticd}\,\text{energy}}{\text{stopping}\,\text{distance}}\] \[=\frac{\frac{1}{2}\times 0.05\times {{(80)}^{2}}}{0.40}=400\,N\]You need to login to perform this action.
You will be redirected in
3 sec