Motion in a Straight Line Test

Result

Motion in a Straight Line Test - 21

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Weekly Quiz Competition

Question 1
4 / -1

A body is thrown vertically up from the ground. It reaches a maximum height of 100 m in 5 sec. After what time it will reach the ground from the maximum height position

A
1.2 sec

B
5 sec

C
10 sec

D
25 sec
Question 2
4 / -1

A particle is thrown vertically upwards. If its velocity at half of the maximum height is 10 m/s, then maximum height attained by it is (Take g = 10 m/s²)

A
8m

B
10m

C
12m

D
16m

Solution
Question 3
4 / -1

Three different objects of masses m₁, m₂ and m₃ are allowed to fall from rest and from the same point \'O\' along three different frictionless paths. The speeds of the three objects. on reaching the ground, will be in theratio of

A

B

C
1 : 1 : 1

D

Solution
Question 4
4 / -1

From the top of a tower, a particle is thrown vertically downwards with a velocity of 10 m/s. The ratio of the distances, covered by it in the 3rd and 2nd seconds of the motion is (Take g = 10 m/s²)

A
5 : 7

B
7 : 5

C
3 : 6

D
6 : 3

Solution
Question 5
4 / -1

Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, then

A
Velocity of A is more than B at the ground

B
Velocity of B is more than A at the ground

C
Both A & B strike the ground with same velocity

D
None of these

Solution
Question 6
4 / -1

A cricket ball is thrown up with a speed of 19.6 ms^–1. The maximum height it can reach is

A
9.8 m

B
19.6 m

C
29.4 m

D
39.2 m

Solution
Question 7
4 / -1

A body falling from a high Minaret travels 40 m in the last 2 seconds of its fall to ground. Height of Minaret in meters is (take g = 10 m/s²)

A
60

B
45

C
80

D
50

Solution
Question 8
4 / -1

A body falls from a height h = 200 m (at New Delhi). The ratio of distance travelled in each 2 sec during t = 0 to t = 6 second of the journey is

A
1 : 4 : 9

B
1 : 2 : 4

C
1 : 3 : 5

D
1 : 2 : 3

Solution
Question 9
4 / -1

A man drops a ball downside from the roof of a tower of height 400 m.At the same time another ball is thrown upside they will meet at which height from the surface of the tower

A
100 m

B
320 m

C
80 m

D
240 m

Solution
Question 10
4 / -1

Two balls are dropped from heights h and 2h respectively from the earth surface. The ratio of time of these balls to reach the earth is

A

B

C
2 : 1

D
1 : 4

Solution