JEE Main 2022 · 30 Jul · Shift 2 · Physics Q2

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PhysicsSingle correct+4 / -1Question 2 of 90

Two trucks A and B are approaching each other on a straight path with the velocities of 16 m/s and 20 m/s respectively. When they are 200 m apart their drivers see each other and applies the breaks simultaneously. If the truck A decelerates with 2 m/s $^2$ and truck B decelerates with 4 m/s $^2$ , what is the distance between them when they finally stop?

14 m

114 m

86 m

64 m

Answer and worked solution

Official answer: C

Stopping distances. A: $\frac{16^2}{4}=64$ m; B: $\frac{20^2}8=50$ m. Remaining gap $200-114=86$ m.

(C)

Topics:Motion in a straight line

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JEE Main 2022 · 30 Jul · Shift 2, Physics question 2