Kinematics Test By Anshul Valecha
6 Questions
| Total Attempts: 53
Questions and Answers
- 1.
- A.
5 units
- B.
12 units
- C.
13 units
- D.
17 units
- 2.An insect fly start from one corner of a cubical room and reaches at diagonally opposite corner. The magnitude of the displacement of the insect is 40 (3)1/2. The volume of the cube is
- A.
64000 ft3
- B.
1600 ft3
- C.
64(3)1/2 ft3
- D.
None of these
- 3.In previous problem, if the insect does not fly but crawls, what is the minimum distance travelled by insect?
- A.
89.44 ft
- B.
95.44 ft
- C.
40 ft
- D.
80 ft
- 4.The displacement of a body from a reference point, is given by, (x)1/2 = 2t + 3, where x is in meter and t in seconds. This shows that the body is
- A.
At rest
- B.
Accelerated
- C.
Decelerated
- D.
In uniform motion
- 5.A train starting from rest travels the first part of its journey with constant acceleration a, second part with constant velocity v and third part with constant retardation a, being brought to rest. The average speed for the whole journey is 7v/8. The train travels with constant velocity for …….. of the total time
- A.
3/4
- B.
7/8
- C.
5/6
- D.
9/7
- 6.If a, b and c be the distances traveled by the body during xth, yth and zth second from start, then which of the following relation is true?
- A.
A (y - z) + b (z - x) + c (x - y) = 0
- B.
A (x - y) + b (y - z) + c (z - x) = 0
- C.
A (z - x) + b (x - y) + c (y - z) = 0
- D.
Ax + by + cz = 0
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