Question

the speed of a car on a highway is represent by (x2 + 8x +3 ). Find the distance covered by the car in (x + 2) seconds.​

Answer 1

Answer:

80m

Step-by-step explanation:

Correct option is A)

as, a=

dT

dV

and also slope=

dx

du

=

dt

dv

∴ slope=a=

4

10

=

8

20

∴a=

2

5

m/s

2

Now, S=ut+

2

1

at

2

∴S=0+

2

1

×

2

5

×64

S=80m