1) At zero acceleration a particle moves along a straight line. What is the velocity of a particle at the position of x = t^{4} 20t^{2} + 42 ?
a. + 48.68 m/sec
b.  48.68 m/sec
c. + 42 m/sec
d.  42 m/sec
Answer
Explanation

ANSWER:  48.68 m/sec
Explanation: No explanation is available for this question!


2) A ball dropped from a wall of height h travels a distance of 50 m in last two seconds before landing. What is the height of the wall from which the ball was dropped?
a. 120.15 m
b. 127.37 m
c. 183.48 m
d. Insufficient data
Answer
Explanation

ANSWER: 127.37 m
Explanation: No explanation is available for this question!


3) What is the length of a train which crosses a bridge of 150 m in 20 sec with a speed of 40 km/h?
a. 222 m
b. 150 m
c. 72.2 m
d. 70.5 m
Answer
Explanation

ANSWER: 72.2 m
Explanation: No explanation is available for this question!


4) The rate of change of __________ with respect to time is called as jerk.
a. acceleration
b. density
c. displacement
d. volume
Answer
Explanation

ANSWER: acceleration
Explanation: No explanation is available for this question!


5) During unidirectional motion, the displacement and distance traveled by a particle with uniform acceleration is ______
a. different
b. same
c. variable
d. none of the above
Answer
Explanation

ANSWER: same
Explanation: No explanation is available for this question!


6) The nature of vt curve is as shown below, when acceleration of a particle is _______
a. a linear function of time
b. nonzero and constant
c. zero
d. none of the above
Answer
Explanation

ANSWER: nonzero and constant
Explanation: No explanation is available for this question!


7) What is the initial velocity of an object which travels a distance of 10t^{2} +15t + 5 along a straight line in time t?
a. 10
b. +10
c. 15
d. +15
Answer
Explanation

ANSWER: +15
Explanation: No explanation is available for this question!


8) When acceleration is _______, velocity of a particle is constant.
a. constant but non zero
b. maximum
c. zero
d. none of the above
Answer
Explanation

ANSWER: zero
Explanation: No explanation is available for this question!


9) A bus travels with a speed of 15 m/s when accelerated at 0.10 m/s^{2} from its rest position. What is the distance traveled?
a. 1125 m
b. 1000 m
c. 2250 m
d. None of the above
Answer
Explanation

ANSWER: 1125 m
Explanation: No explanation is available for this question!


10) What is the distance traveled by an electron in first 4 seconds from its initial position, if velocity time relation is given as v = 3t?
a. 12 m
b. 15 m
c. 20 m
d. 24 m
Answer
Explanation

ANSWER: 24 m
Explanation: No explanation is available for this question!

