Statics and Dynamics Test

Result

Statics and Dynamics Test - 4

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

A point is moving with uniform acceleration in the eleventh and fifteenth seconds from the commencement it moves through 720 and 960 cm, respectively. Its initial velocity and the acceleration with which it moves are respectively

A
60 m/s, 40 m/s²

B
70 m/s, 30 m/s²

C
90 m/s, 60 m/s²

D
None of these

Solution
Question 2
4 / -1

A house has multi-storeys. The lowest storey is 20 ft high. A stone which is dropped from the top of the house passes the lowest storey in 1/ 4 s. The height of the house is

A
100 ft

B
110 ft

C
110.25 ft

D
None of these

Solution
Question 3
4 / -1

A body starts from rest and moves with a uniform acceleration. The ratio of the distance covered in n th second to the distance covered in n seconds is

A

B

C

D
Question 4
4 / -1

A body falls freely from the top of a tower and during the last second of its flight it falls 5/9th of the whole distance. The height of the tower and time of motion are respectively

A
44.1 m and 3s

B
44.1 m and 5 s

C
4.41 m and 3 s

D
None of these
Question 5
4 / -1

A body falls freely from a point A and passes through the points B and C . Given that, AB = 2BC . The ratio of the time taken by the body to cover the distances AB and BC is

A

B

C

D
Question 6
4 / -1

A body falling from rest under gravity passes a certain point P . It was at a distance of 400 m from P , 4 s prior to passing through P. If g = 10 m/s² , then the height above the point P from where the body began to fall is

A
900 m

B
320 m

C
680 m

D
720 m
Question 7
4 / -1

A
6 s

B
8 s

C
9 s

D
10 s
Question 8
4 / -1

Let two like parallel forces be acting, at points A and B such that the force at A is double than the force at B . If C is the point of action of the resultanted, then AC/ BC is equal to

A
2

B
1/2

C
1/3

D
1/4

Solution
Question 9
4 / -1

A force of 25 N is applied to object A and B . This force produces the accelerations in the ratio 4 : 3. If the force is increased to 30 N, the difference in the ratios of new and earlier accelerations is

A
zero

B
4/3

C
8/3

D
3/4

Solution
Question 10
4 / -1

A body projected in vertical direction attains maximum height 50 m. Find its velocity at 25 m height.

A

B

C

D