A force acts on a 30gm particle in such a way that the position of the – McqOptions

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1.	A force acts on a 30gm particle in such a way that the position of the particle as a function of time is given by\[x=3t-4{{t}^{2}}+{{t}^{3}}\], where x is in metres and t is in seconds. The work done during the first 4 seconds is
A.	576mJ
B.	450mJ
C.	490mJ
D.	530mJ
Answer» B. 450mJ

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