Questions asked by A.J.

• Back to user's profile
• An object moves along a straight line. Its displacement s (in metres) from a reference point at time t (in seconds) is given by s(t) = 4t^3 - 21t^2 + 18t + 5 (t ≥ 0) expressions for the velocity v(t) and the acceleration a(t) of the object at time t?
  
• The vector v has magnitude 13 and makes an angle 285 of with the positive x direction ?
  
• Differentiate the function f(x)=x^(3/2) ?