Question

34. A body of mass 2kg has an initial speed 5 ms
force acts on it for some time in the direction of
motion. The force time graph is shown in figure,
The final speed of the body is. a. 8.5m/s. b. 11m/s. c. 14.31m/s. d.4.31m/s​

Answer 1

Answer:

C

Explanation:

m = 2 kg

V = 5m/s

F ∙ t = m(V2 – V1)

area uncles curve = F × t {(1 / 2) × 2 × 4} + (2 × 4) + (2 × 2.5) + [(1/2) × 0.5 × (4 + 2.5)]

= 4 + 8 + 5 + [(1/2) × 0.5 × 6.5]

F × t = 18.625

m(V2 – V1) = 18.625

V2 – V1 = {(18.625) / 2}

V2 = V1 + 9.3125

= 5 + 9.3125 V2

= 14.25 m/s

Answer 2

Here is your answer user.