Question

27. The motion of a particle along a straight line is described by the functions = 6+4t^2-t^4 in SI units
The velocity, acceleration, at t = 2s, and the average velocity during 3rd second is

1)-16 ms', 40 ms?, -45 ms
2) 6 ms-!, 40 ms?, 45 ms-
3) 8 ms, 4 ms -15 ms
4) 16 ms-, -45 ms -2,-40 ms​

Answer 1

Answer:

1)

Step-by-step explanation:

Diferentiate the equation to find function of velocity.

Then put the value of T in the equation.

To find out acceleration double differentiate the equation and put the value of T .

For average velocity first calculate the displacement and divide it by time taken.