A n object of mass 3 kg is at rest. Now a force of \(\overrightarrow{\mathrm{F}}\) = 6 t2\(\hat{i}\) + 4t\(\hat{j}\) is applied on the object, then the velocity of object at t = 3 second is –
A. 18\(\hat{i}\) + 3 \(\hat{j}\)
B. 18\(\hat{i}\) + 6\(\hat{j}\)
C. 3 \(\hat{i}\) + 18\(\hat{j}\)
D. 18 \(\hat{i}\) + 4\(\hat{j}\)
Answer:B
A n object of mass 3 kg is at rest. Now a force of \(\overrightarrow{\mathrm{F}}\) = 6 t2\(\hat{i}\) + 4t\(\hat{j}\) is applied on the object, then the velocity of object at t = 3 second is –
A. 18\(\hat{i}\) + 3 \(\hat{j}\) B. 18\(\hat{i}\) + 6\(\hat{j}\) C. 3 \(\hat{i}\) + 18\(\hat{j}\) D. 18 \(\hat{i}\) + 4\(\hat{j}\)