The Symmetry of the Path Traced
Trending Questions
Q. A relief aeroplane is flying at a constant height of 1960 m with 600 km/hr speed above the ground towards a point directly over a person struggling in flood water. At what angle of sight with the vertical should the pilot release a survival kit if it has to reach the person in water ?
(g=9.8 m/s2)
(g=9.8 m/s2)
- 30∘
- 37∘
- 45∘
- 60∘
Q. A man projects a coin upwards from the gate of a uniformly moving train. The path of coin for the man will be
- Parabolic
- Inclined straight line
- Vertical straight line
Horizontal straight line
Q. Two particals 1 &2 move with constant velocity v1 and v2 along two mutually perpendicular straight lines towards intersection point O. At a moment t=O the particals were located at the distance l1 and l2 from point o . How soon will the distance between two particals become the smallest? What it is equal to?
Q. A particle is projected with speed u to just pass over a tower of height h. The product of the two possible times taken to pass over the tower is
- None
- ug
- 2hg
- 2ug
Q. An aeroplane is observed by two persons travelling at 60km/h in two vehicles moving in opposite direction in a straight line road.To an observer in one vehicle the aeroplane appears to cross the road track at right angles while to the observer in other vehicle the angle appears to be 45 degree.At what angle does the plane actually cross the road track and what is its speed relative to the ground?
Q. A ball is thrown from a point with a speed v0 at an elevation angle of θ. From the same point and at the same instant, a person starts running with a constant speed v02 to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection θ ?
- No
- yes, 30∘
- yes, 60∘
- yes, 45∘
Q. A water jet is being used to fill a cylindrical container of diameter 1m and height 2 m. The jet shoots the water at an angle of 45o with velocity u above the same horizontal plane on which the container is kept. The distance between the jet and container is 6 m as shown in the diagram. For which of the following value(s) of u, the water will fill up the container. (Take g=10 m/s2)
- √92
- √67
- √97
- √62