Motion in a Straight Line 34 The slope of the tangent drawn on velocity time graph at any instant of time is equal to the

Question

Motion in a Straight Line 34 The slope of the tangent drawn on velocity time graph at any instant of time is equal to the instantaneous a acceleration c impulse 35 The area under acceleration time graph represents the a initial velocity c change in velocity b velocity d momentum 36 Which of the following statements is not correct regarding the motion of a particle in a straight line a x t graph is a parabola if motion is uniformly 40 accelerated b v t is a straight line inclined to the time axis if motion is uniformly accelerated A b final velocity d distance travelled c x t graph is a straight line inclined to the time axis if motion is uniform and acceleration is B C D d A car starts from rest attains a velocity of 36 km h with an acceleration of 0 2 m s2 travels 9 km with this uniform velocity and then comes to halt with a uniform deceleration of 0 1 m s2 The total time of travel of the car is a 1050 s zero c 950 s d v t graph is a parabola if motion is uniform and 41 A particle moving with uniform acceleration has acceleration is zero average velocities v V and v over the successive intervals of time t f and t respectively The value 37 Match the Column I with Column II Column I of will be Graph Column II Characteristic p Has v 0 and a 0 throughout q Has x 0 throughout and has a point with v 0 and a point with a 0 r Has a point with zero displacement for t 0 s Has v 0 and a 0 How a 2 ms c 1 ms a A p B q C s D r b A q B p C r D s c A s B r C q D p d A r B q C s D p 38 A particle moving along a straight line has a velocity vms when it cleared a distance of x m These two are connected by the relation v 49 x When its velocity is 1 m s its acceleration is 7 A particle moves rectilinearly Its displacement x at time t is given by xat b where a and b are constants Its acceleration at time t is proportional to a v 2 V V a 5 1 1 13 c 5 1 1 13 b 7 ms 2 d 0 5 ms a P 9 b c 1 b 1000 s d 900 s b A particle starts from point A moves along a straight line path with an acceleration given by a p qx where p q are constants and x is distance from point A The particle stops at point B The maximum velocity of the particle is b L 44 Position time graph acceleration is l 1 d 1 1 1 35 c 9 P P For the one dimensional motion described by x t sint a x t 0 for all t 0 c a t 0 for all t 0 b d b v t 0 for all 1 0 d all of these for motion with zero d L X

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