Question

the motion of a body is given by an equation a = t2 - 2t + 2 where a is acceleration in m/s² and t is time in seconds the velocity and displacement of the body after 1 second was 6⅓ m/s and 14¾ respectively find the velocity and displacement after 2 seconds​

Answer 1

Step-by-step explanation:

acc. to second eq of motion

14 3/4 = u ×1 +1/2(1-2+2)×1

59/4-1/2 =u

57/4 m/s =u

now acc. to I st eq of motion

v= 57/4+(4-4+2)×2

v=57+16/4

v=73/4 m/s

and

d = 57/4×2+1/2×2×4

d=(57+8)/2

d=65/2