Kinematics Test By Anshul Valecha

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

• 64000 ft3

• 1600 ft3

• 64(3)1/2 ft3

• None of these

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

• At rest

• Accelerated

• Decelerated

• In uniform motion

In previous problem, if the insect does not fly but crawls, what is the minimum distance travelled by insect?

• 89.44 ft

• 95.44 ft

• 40 ft

• 80 ft

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 (y - z) + b (z - x) + c (x - y) = 0

• A (x - y) + b (y - z) + c (z - x) = 0

• A (z - x) + b (x - y) + c (y - z) = 0

• Ax + by + cz = 0

• 5 units

• 12 units

• 13 units

• 17 units