### Questions & Options

#### 1. At zero acceleration if a particle is moving along a straight line. So, what is the velocity of a particle at the position of x = t4 -20t2 + 42 ?

 165092 - 42 m/sec 165093 + 42 m/sec 165094 + 48.68 m/sec 165095 - 48.68 m/sec

#### 2. A ball dropped from a wall of height h travels a distance of 50 m in the last two seconds before landing. Explain the height of the wall where the ball dropped?

 165096 167.8 m 165097 120.15 m 165098 127.37 m 165099 241.6 m

#### 3. What can be the length of a train which crosses a bridge of 150 m in 20 sec with a speed of 40 km/h?

 165100 65.9 meters 165101 72.2 meters 165102 12.8 meters 165103 100.7 meters

#### 4. Complete the following sentence: The rate of change of __________ with respect to time is called as a jerk?

 165104 Acceleration 165105 Velocity 165106 Distance 165107 Speed

#### 5. In the case of unidirectional motion, the displacement and distance traveled by a particle with uniform acceleration will be _______.

 165108 Different 165109 Complex 165110 Different 165111 Similar

#### 6. The nature of the v-t curve (horizontal) will be when the acceleration is

 165112 A linear function 165113 zero and constant 165114 non-zero and constant 165115 None of the above

#### 7. The initial velocity of an object which travels a distance of 10t2 +15t + 5 along a straight line in time t will be?

 165116 +27 165117 +15 165118 -60 165119 -10

#### 8. The velocity of the particle will be constant when the acceleration is ________?

 165120 Zero 165121 Minimum 165122 Maximum 165123 Negative

#### 9. Tell the distance in this case: A bus travels with a speed of 15 m/s when accelerated at 0.10 m/s2 from its rest position.

 165124 1349 meters 165125 1078 meters 165126 1287 meters 165127 1125 meters

#### 10. If velocity-time relation is given as v = 3t, what will be the distance traveled by an electron in first 4 seconds from its initial position

 165128 42 meters 165129 30 meters 165130 24 meters 165131 87 meters

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