Home
Class 12
MATHS
The equation of motion of a point in sp...

The equation of motion of a point in space is x = 2t, y = -4 t, z=4t (t second ). The path of the point is .....

A

Parabola

B

Circle

C

Plane

D

Straight line

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise PRACTICE PAPER -11|16 Videos
  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise SOLUTION OF NCERT EXAMPLAR PROBLEMS (Short Answer Type Question)|49 Videos
  • RELATIONS AND FUNCTIONS

    KUMAR PRAKASHAN|Exercise Practice Paper - 1 (Section - D)|2 Videos
  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-D)|2 Videos

Similar Questions

Explore conceptually related problems

The equation of motion of rockets are x=2t, y=-4t, z=4t where the time 't' is given in second and the coordinate of a moving point in kilometres. What is the path of the rockets? At what distance will the rocket be from the starting point O(0, 0, 0) in 10s.

The equation of motion of a particle is x= a cos (alpha t)^(2) . The motion is………..

In the equation of motion of waves in x-direction is given by y= 10^(-4) sin(600t-2x+(pi)/(3)) where x and y are in metre and t is in second, then the velocity of wave will be………… ms^(-1) .

A car moves along a straight line whose equation of motion is given by s=12t+3t^(2)-2t^(3) where s is in metres and t is in seconds. The velocity of the car at start will be :-

The coordinates of a particle moving in XY-plane very with time as x=4t^(2),y=2t . The locus of the particle is

Equation of the motion of the particle is S = t^(3)-6t^(2)+9t , where S is in mets and t is in seconds. (i) Find the instantaneous velocity when t = 2. (ii) When particle is at rest ? (iii) Find distance travelled by particle in first 5 second.

The motion of a particle along a straight line is described by equation : x = 8 + 12 t - t^3 where x is in metre and t in second. The retardation of the particle when its velocity becomes zero is.

A point P moves in counter clockwise direction on a circular path as shown in the figure. The movement of 'P' is such that it sweeps out a length s=t^(2)+5 , wheres is in metres and t is in seconds. The radius of the path is 20m. The acceleration of 'P' when t=5sqrt((3)/(10)) seconds is nearly:

Let r_(1)(t)=3t hat(i)+4t^(2)hat(j) and r_(2)(t)=4t^(2) hat(i)+3that(j) represent the positions of particles 1 and 2, respectiely, as function of time t, r_(1)(t) and r_(2)(t) are in metre and t in second. The relative speed of the two particle at the instant t = 1s, will be

Write the equation of a tangent to the curve x=t, y=t^2 and z=t^3 at its point M(1, 1, 1): (t=1) .

KUMAR PRAKASHAN-THREE DIMENSIONAL GEOMETRY-MULTIPLE CHOICE QUESTIONS (MCQs)
  1. Prove that if the lines x = ay + b, z = cy + d and x = a'y + b', z = c...

    Text Solution

    |

  2. The lines (x-1)/(3) = (y-1)/(-1) = (z+1)/0 and (x-4)/(2) = (y+0)/(0) =...

    Text Solution

    |

  3. The equation of motion of a point in space is x = 2t, y = -4 t, z=4t ...

    Text Solution

    |

  4. The distance of the point P (4,3,5) from Y-axis is lambda then 5lambda...

    Text Solution

    |

  5. A line makes an angle of measure alpha with X-axis and Y-axis cot alph...

    Text Solution

    |

  6. The angle between the lines (x+1)/(2) + (y+3)/(2) = (z-4)/(-1) and (x-...

    Text Solution

    |

  7. If the foot of perpendicular drawn from the point (a,b,c) and the line...

    Text Solution

    |

  8. The distance between the lines x = 1 - 4t,y=2+ t, z= 3 + 2t and x=1 +S...

    Text Solution

    |

  9. The distance ratio of two lines are (5,-12,13) and (-3,4,5) . Then the...

    Text Solution

    |

  10. If cos alpha, cos beta, gamma are direciton cosines then cos 2 alpha +...

    Text Solution

    |

  11. A line makes an angle alpha,beta and gamma with axes repectively, The ...

    Text Solution

    |

  12. The angle between the lines 2x = 3y = -z and 6x = -y = -4x is ...........

    Text Solution

    |

  13. Givne lines are (x-1)/(l) = (y + 1)/(m) = z/n and (x+1)/(m) = (y-3)/...

    Text Solution

    |

  14. The distance of the point P(1,2,3) from the line (x-6)/(3) = (y-7)/(2)...

    Text Solution

    |

  15. The lines x/1 = y/2 = z/3 and (x-1)/(-2) = (y-2)/(-4) = (z-3)/(-6)are ...

    Text Solution

    |

  16. The direction ratios of the line x-y+z-5=0=x-3y-6 are

    Text Solution

    |

  17. The shortest distance the lines (x-3)/(3) = (y-8)/(-1) = (z-3)/(1) and...

    Text Solution

    |

  18. The direction cosines of line satisfy the relations lambda(l+m) = n an...

    Text Solution

    |

  19. The coordinates of a point on the line (x-1)/(2) = (y+1)/(-3) =z at a ...

    Text Solution

    |

  20. The symmetric from of the equation of the line x + y -z = 1 and 2x -3y...

    Text Solution

    |