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SIMILAR QUESTIONS

Q1

The numerical value of the ratio of average velocity to average speed is

Q2

The moving body is covering the displacement directly proportional to the square of the time. The acceleration of the body is

Q3

If two balls of same density but different masses are dropped from a height of 100 m, then (neglect air resistance)

Q4

Cheek up only the correct statement in the following

Q5

The position x of a particle varies with time (t) as x = at– bt. The acceleration at time t of the particle will be equal to zero, where t is equal to

Q6

A body covers one-third of the distance with a velocity v1, the second one-third of the distance with a velocity v2 and the remaining distance with a velocity v3. The average velocity is

Q7

Between the two station, a train accelerates from res uniformly at first, then moves with constant velocity and finally retards uniforms to come to rest. If the ratio of the time taken be 1 : 8 : 1 and the maximum speed attained be 60 km/h, then what is the average speed over the whole journey ?

Q8

A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance is covered in two equal time intervals with speeds of 4.5 m/s and 7.5 m/s, respectively. The average speed of the particle during this motion is

Q9

Taxies leave the station X  for Y every 10 min. Simultaneously, a taxi also leaves the station Y for station X every 10 min. The taxies move at the same constant speed and go from X and Y or vice-versa in 2h. How many taxies coming from the other side will meet each taxi enroute from Y and X?

Q10

The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation , where x is in m and t is in s. Find the displacement of the particle when us velocity is zero