A particle moves on a circle of radius r with centripetal accelration as function of time as `a_(c)=K^(2)rt^(2)` where k is a positive constant , find the resu ltant acceleration.A. `kt^(2)`B. `kr`C. `krsqrt(k^(2)t^(4)+1)`D. `krsqrt(k^(2)t^(2)-1)`

A particle moves on a circle of radius r with centripetal accelration

1.	A particle moves on a circle of radius r with centripetal accelration as function of time as `a_(c)=K^(2)rt^(2)` where k is a positive constant , find the resu ltant acceleration.A. `kt^(2)`B. `kr`C. `krsqrt(k^(2)t^(4)+1)`D. `krsqrt(k^(2)t^(2)-1)`
Answer» Correct Answer - c From given equation `omega=kt` `alpha=(domega)/(dt)=k, alpha_(t)=ralpha, alpha=sqrt(a_(c)^(2)+a_(r)^(2))`

Discussion

No Comment Found

Related InterviewSolutions

A particle is thrown above, then correct `v-t` graph will beA. B. C. D.
The position `x` of a particle with respect to time `t` along the x-axis is given by `x=9t^(2)-t^(3)` where `x` is in meter and `t` in second. What will be the position of this particle when it achieves maximum speed along the positive `x` directionA. 54mB. 81mC. 24mD. 32m
Two trains are moving with equal speed in opposite directions along two parallel railway tracks. If the wind is blowing with speed `u` along the track so that the relative velocities of the trains with respect to the wind are in the ratio `1:2,` then the speed of each train must beA. 3uB. 2uC. 5uD. 4u
An acroplane is flying horizontally with a velocity of 600 km/h and a height of 1960m. When it is vectrically above a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. the distance AB is:A. 1200mB. 0.33kmC. 333.3kmD. 3.33km
A grasshopper finds that he can jump a maximum horizontal distance of 0.8m. With what speed can be travel along the road if he spends a negligible time on the ground?A. 2m/sB. 2.8m/sC. 104m/sD. 1m/s
A block of ice starts sliding down from the top of the inclined roof of a house (angle of inclination of roof=`30^(@)` with the horizontal) along aline of maximum slope. The highest and lowest points of the roof are at heights of 8.1m and 5.6 m respectively from the ground. At what horizontal distance from the starting point will the block hit the ground? Neglect friction.
An open merry go round rotates at an angular velocity `omega`.A person stands in it at a distance `r` from the rotational axis.It is raining and the rain drops falls vertically at a velocity `v_(0)`.How should the person hold an umbrella to protect himself from the rain in the best way.Angle made by umbrella with the vertical isA. `cot alpha=(v_(0))/(romega)`B. `tan alpha=(v_(0))/(romega)`C. `cot alpha=(romega)/(v_(0))`D. `tan alpha=(v_(0))/(romega)`
Three balls A,B and C are projected from ground with same speed at same angle with the horizontal. The balls A,B and C collie with the wall during a flight in air and all three collide perpendicu lary and eleastically with the wall as shown in Fig. 5.119 it the time taken by the ball A to fall back on ground is 4 seconds and that by ball B is 2 seconds. Then the time taken by the ball C to reach the ground after projection will be:
Particle projected from tower fo heigh 10m as shown in figure. Find the time (in sec) after which particle will hit the ground.
A ball is projected from the ground with velocity v such that its ranege is maximum.

A particle moves on a circle of radius r with centripetal accelration as function of time as `a_(c)=K^(2)rt^(2)` where k is a positive constant , find the resu ltant acceleration.A. `kt^(2)`B. `kr`C. `krsqrt(k^(2)t^(4)+1)`D. `krsqrt(k^(2)t^(2)-1)`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment