the displacment of a particle long x-axis is given by x=7t^(2)+8t+3 . Its acceleratiton anf velocity at t=2s respectively….

the displacment of a particle long x-axis is given by x=7t^(2)+8t+3 .

1.	the displacment of a particle long x-axis is given by x=7t^(2)+8t+3 . Its acceleratiton anf velocity at t=2s respectively….
Answer» `36ms^(-1),14ms^(-2)` `14ms^(-2), 36ms^(-1)` . `47ms^(-2), 21ms^(-1)` `2MS^(-1), 47ms^(-2)` . SOLUTION : `x=7t^(2)+8t+3` `V=(dx)/(dt)=14t+8, at t=2s, V=36ms^(=1)` `a=(dv)/(dt)=14ms^(-2)`