Motion in a Straight Line Test

Result

Motion in a Straight Line Test - 35

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Weekly Quiz Competition

Question 1
4 / -1

A body is moving with uniform acceleration describes 40 m in the first 5 sec and 65 m in next 5 sec. Its initial velocity will be

A
4 m/s

B
25 m/s

C
5.5 m/s

D
11 m/s

Solution
Question 2
4 / -1

A body of 5 kg is moving with a velocity of 20 m/s. If a force of 100 N is applied on it for 10 s in the same direction as its velocity, what will now be the velocity of the body?

A
200 m/s

B
220 m/s

C
240 m/s

D
260 m/s

Solution
Question 3
4 / -1

Starting from rest, acceleration of a particle is a = 2(t – 1). The velocity of the particle at t = 5s is

A
15 m/sec

B
25 m/sec

C
5 m/sec

D
None of these

Solution
Question 4
4 / -1

A student is standing at a distance of 50 m from the bus. As soon as the bus begins its motion with an acceleration of 1 ms^–2, the student starts running towards the bus with a uniform velocity u. Assuming the motion to be along a straight road, the minimum value of u, so that the student is able to catch the bus is

A
5 ms^–1

B
8 ms^–1

C
10 ms^–1

D
12 ms^–1

Solution
Question 5
4 / -1

A body A moves with a uniform acceleration a and zero initial velocity. Another body B, starts from the same point moves in the same direction with a constant velocity v, The two bodies meet after t. The value of t is

A

B

C

D

Solution
Question 6
4 / -1

A particle moves along X-axis in such a way that its co-ordinate X varies with time t according to the equation x = (2 – 5t + 6t²) m. The initial velocity of the particle is

A
–5 m/s

B
6 m/s

C
–3 m/s

D
3 m/s

Solution
Question 7
4 / -1

A car starts from rest and moves with uniform acceleration a on a straight road from t = 0 to t = T. After that, a constant deceleration brings it to rest. In this process the average speed of the car is

A

B

C

D

Solution
Question 8
4 / -1

An object accelerates rest to a velocity 27.5 m/s in 10 sec, then find distance covered by object in next 10 sec

A
550 m

B
137.5 m

C
412.5 m

D
275 m

Solution
Question 9
4 / -1

A
Zero

B
8 m/s²

C
–8 m/s²

D
4 m/s²

Solution
Question 10
4 / -1

The displacement of a particle is proportional to the cube of time elapsed. How does the acceleration of the particle depends on time obtained?

A
a ∝ t²

B
a ∝ 2t

C
a ∝ t³

D
a ∝ t

Solution