Motion in A Straight Line Test

Result

Motion in A Straight Line Test - 7

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

A truck accelerates at 1 m / sec² from rest. What is its velocity in m/s at a time of 2 sec?

A
3

B
1

C
2

D
4

Solution

Initial velocity u = 0 m/s

final velocity = v

Time t = 2 s

Acceleration a = 1 m/s²

We know,

v = u + at

=>v = 0 + 1 × 2

=> v = 2 m/s
Question 2
1 / -0

A truck has a velocity of 2 m /s at time t=0. It accelerates at 2 m / s² on seeing police .What is its velocity in m/s at a time of 2 sec

A
3

B
6

C
7

D
4

Solution

Initial velocity u = 2 m/s

final velocity = v m/s

Time duration = final time - initial time = 2-0 = 2 s

acceleration a = 2 m/s²

We know,

v = u + at

=> v = 2 + 2 × 2

=> v = 6 m/s
Question 3
1 / -0

A truck has a velocity of 3 m /s at time t=0. It accelerates at 3 m / s² on seeing police .What is its velocity in m/s at a time of 2 sec

A
12

B
8

C
7

D
9

Solution

Initial velocity u = 3 m/s

Acceleration a = 3 m/s²

Initial time t₁= 0s

Final time t₂ = 2 s

Time taken t = 2 - 0 = 2 s

Final velocity v = ?

We know,

v = u + at

=>v = 3 + 2 × 3

=>v = 3 + 6 = 9 m/s2