Home
Class 11
PHYSICS
A particle is projected from ground with...

A particle is projected from ground with velocity `40sqrt2m` at `45^(@)`.At time `t=2s`

A

displacement of particles is `100 m`

B

vertcal component of velocity is `20 m//s`

C

velocity makes an angle of `tan^(-1)(2)` with vertical

D

particle is at height of `60 m` from ground

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
`u_(x)=40m//s,u_(y)=40m//s`,At `t=2s`.
`v_(x)=40m//s,v_(y)=40m-10xx2=20m//s`.
`x=v_(x)t=80m`
`y=u_(x)t-1/2"gt"^(2)=60m`
`:.s=sqrt(x^(2)+y^(2))=100m`
`theta=tan^(-1)(v_(x)/v_(y))=tan ^(-1)(2)`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    NARAYNA|Exercise Level -V Passage|15 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise Integer|6 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise Level -V Single answer|31 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 H.W|29 Videos

Similar Questions

Explore conceptually related problems

A particle is projected from ground with velocity 40sqrt(2)m//s at 45^(@) . At time t=2s

A particle is projected from ground with velocity 20(sqrt2) m//s at 45^@ . At what time particle is at height 15 m from ground? (g = 10 m//s^2)

A particle is projected from ground with velocity 40(sqrt2) m//s at 45^@ . Find (a) velocity and (b) displacement of the particle after 2 s. (g = 10 m//s^2)

A particle is projected from ground with initial velocity u= 20(sqrt2)m//s at theta = 45^@ . Find (a) R,H and T, (b) velocity of particle after 1 s (c) velocity of particle at the time of collision with the ground (x-axis).

A projectile of mass 3m is projected from ground with velocity 20sqrt2 m//s at 45^@ . At highest point it explodes into two pieces. One of mass 2m and the other of mass m. Both the pieces fly off horizontally in opposite directions. Mass 2m falls at a distance of 100m from point of projection. Find the distance of second mass from point of projection where it strikes the ground. (g=10m//s^2)

A particle is projected from a point A with velocity sqrt(2)u an angle of 45^(@) with horizontal as shown in figure. It strikes the plane BC at right angles. The velocity of the particle at the time of collision is

A particle is projected from ground with velocity 50 m//s at 37^@ from horizontal. Find velocity and displacement after 2 s. sin 37^@ = 3/5 .

A particle is projected from a tower of height 25 m with velocity 20sqrt(2)m//s at 45^@ . Find the time when particle strikes with ground. The horizontal distance from the foot of tower where it strikes. Also find the velocity at the time of collision.

A particle is projected with velocity 20sqrt(2)m//s at 45^(@) with horizontal. After 1s (g=10m//s^(2)) match the following table

A particle is projected from ground with velocity 3hati + 4hati m/s. Find range of the projectile :-

NARAYNA-MOTION IN A PLANE-Level -V Multi answer
  1. At that instant a motor bike starts from rest in a given direction, a ...

    Text Solution

    |

  2. A man in a boat crosses a river from point A. If he rows perpendicular...

    Text Solution

    |

  3. A motor boat is to reach at a point 30^@ upstream on the outer side of...

    Text Solution

    |

  4. A car is moving rectilinearly on a horizontal path with acceleration ...

    Text Solution

    |

  5. Three particles A,B and C and situated at the vertices of an equilater...

    Text Solution

    |

  6. A man crosses a river in a boat. If he cross the river in minimum time...

    Text Solution

    |

  7. The coordinate of a particle moving in a plane are given by x(t) = ...

    Text Solution

    |

  8. Trajectories of two projectiles are shown in figure.Let T(1) and T(2) ...

    Text Solution

    |

  9. In a projectile motion let v(x) and v(y) are the horizontal and vertic...

    Text Solution

    |

  10. Two particles are projected from ground with same intial velocities at...

    Text Solution

    |

  11. A particle is projected from the ground with velocity u at angle theta...

    Text Solution

    |

  12. Two projectiles A and B are fired simultaneously as shown in figure. T...

    Text Solution

    |

  13. Suppose in the absence of air resistance,R=OB,H+AC,t(1)=t(OA) and t(2)...

    Text Solution

    |

  14. From an inclined palne two particles P,Q are projected with same speed...

    Text Solution

    |

  15. In a projectile motion let t(OA)=t(1) and t(AB)=t(2).The horizontal di...

    Text Solution

    |

  16. A projectile is projected from the ground making an angle of 30^(@) wi...

    Text Solution

    |

  17. A particle is fired from a point on the ground with speed u making an ...

    Text Solution

    |

  18. A particle is projected from ground with velocity 40sqrt2m at 45^(@).A...

    Text Solution

    |