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A boat is being rowed in a river. Air is...

A boat is being rowed in a river. Air is also blowing. Direction of velocity vectors of boat, water and air in ground frame are as shown in diagram.

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(A)P; (B)-Q, S; (C)-S; (D)-P, R
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A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. The distance between the boat and raft at a later instant of time t is

At a harbour, a boat is standing and wind is blowing at a speed of sqrt(2)m//sec. due to which , the flag on the boat flutters along north - east. Now the boat enters in to river, which is flowing with a velocity of 2m//sec . Due north. The boat starts with zero velocity relative to the river and its constant acceleration relative to the river is 0.2m//sec^(2) due east. In which direction will the flag flutter at 10 seconds ?

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. Let the boat turns back at time t=t_(0) and starts moving towards the raft. The separation between the raft and boat after a time interval t' measured from the moment of turning back is

A boat is travelling in a river with a speed 10m//s along with stream flowing 2m/s. From this boat, a sound transmitter is lowered into the river through a rigid support. The wavelength of the sound emitted from the transmitter inside the water is 14.45mm . Assume that attenuation of sound in water and air is negligible. (a) What will be the frequency detected by a receiver kept inside the river downstream? (b) The transmitter and the receiver are now pulled up into air. the air is blowing with a speed 5m//s in the direction opposite the river stream. Determine the frequency of the sound detected by the receiver. (Temperature of the air and water = 20^(@)C , Density of river water = 10^(3) kg//m^(3) , Bulk modulus of the water = 2.088 xx 10^(9) Pa, gas constant R = 8.31 J//mol-K , Mean molecular mass of air = 28.8 xx 10^(-3) kg//mol , C_(P)//C_(V) for air = 1.4 )

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. Let the boat turns back at time t = t_(0) and starts moving towards the raft. After how much time, measured from the moment of turning back the boat will cross the raft again ? Option 1 t_(0) Option 2 (ut_(0))/(u+v) Option 3 (vt_(0))/(u+v) Option 4 ((v+v)t_(0))/(u-v)

A boat takes 4 hr upstream and 2 hr down the stream for covering the same distance. The ratio of velocity of boat to the water in river is

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A boat is travelling in a river with a speed 10 m//s along the stream flowing with a speed 2 m//s . From this boat , a sound transmitter is lowered into the river throught a rigid support. The wavelength of the sound emitted from the transmitter inside the water is 14.45 mm . Aassume that attenuation of sound in water and air is neglisible. (a) What will be the frequency delected by a receiver kept inside the river downstream ? (b) The transmitter and the reciver are now pulled up into air. The air is blowing with a speed 5 m//s in the direction opposite the river stream. Determine the frequency of the sound delected by the reciver. (Temperature of the air and water = 20^(@) C , Density of river water = 10^(3) kg//m^(3) , Bulk modulus of the water = 2.088 xx10 ^(9) Pa , Gas constant, R= 8.31 J//mol - K , Mean molecular mass of air = 28.8xx 10 ^(-3) kg//mol , C_(p)//C_(V) for air = 1.4

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ALLEN-KINEMATICS-2D-Exercise (O-2)
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  2. A point mass is moving in the x-y plane. Its acceleration is a constan...

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  3. A ball is thrown from ground such that it just crosses two poles of eq...

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  4. Position vector of a particle is expressed as function of time by equa...

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  5. A projectile is thrown with speed u into air from a point on the horiz...

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  6. A block is thrown with a velocity of 2m//s^(-1) (relative to ground) o...

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  7. A man on a rectilinearly moving cart, facing the direction of motion, ...

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  8. A cubical box dimension L = 5//4 m starts moving with an acceleration ...

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  9. A large rectangular box moves vertically downward with an acceleration...

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  10. In the figure there is a long horizontal bridge over a river 75 m high...

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  11. In the figure there is a long horizontal bridge over a river 75 m high...

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  12. In the figure there is a long horizontal bridge over a river 75 m high...

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  13. From the ground level, a ball is to be shot with a certain speed. Grap...

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  14. From the group level, a ball is to be shot with a certain speed. Graph...

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  15. Match the following A particle is projected with initial speed u=...

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  16. Match the following A particle is projected from a large fixed in...

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  17. Match the following In groung to ground projection a particle is ...

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  18. A small ball is prjected along the surface of a smooth inclined plane ...

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  19. Match the following

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  20. A boat is being rowed in a river. Air is also blowing. Direction of ve...

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