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Ram was riding in a car travelling at a speed of 20 m/s^−1 toward east. Shyam was standing on the sideway when the car passed him. Just before the car passed close to Shyam (when it was north-west of him); Ram had thrown a banana peel with velocity 10 m/s^−1 relative to him as v Banana,Ram = (−10) i ^ + (−10) j ^ . The banana peel had velocity components 10 m/s^−1 toward south and 10 m/s^−1 towards west in Ram’s reference frame. When Ram met Shyam later, Shyam accused that Ram had thrown the banana peel at him. Explain this with the help of a velocity diagram.
28
Aug
Ram was riding in a car travelling at a speed of 20 m/s^−1 toward east. Shyam was standing on the sideway when the car passed him. Just before the car passed close to Shyam (when it was north-west of him); Ram had thrown a banana peel with velocity 10 m/s^−1 relative to him as v [...]
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A man A is sitting in a car at rest observes a man B on bike moving away from him with velocity 16 m s^-1 ,
a man C walking on road with velocity 2 ms^-1 towards him and a bird flying with spedd 20 ms^-1 at angle 37^@ with horizontal as shown in (Fig. 5.74). Find the (a) velocity of car ,
and man C as seen by bird. ,
and man C as seen by man B. (b) velocity of car ,
bird ,
man B ,
man B as seen by man C ( c) velocity of car ,
A particle moves from a point (-2i^ + 5j^) to (4j^ + 3k^ ) when a force of (4i^+3j^) N is applied. How much work has been done by the force ?
28
Aug
A particle moves from a point (-2i^ + 5j^) to (4j^ + 3k^ ) when a force of (4i^+3j^) N is applied. How much work has been done by the force ? A particle moves from a point (-2i^ + 5j^) to (4j^ + 3k^ ) when a force of (4i^+3j^) N is applied. How [...]
Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m/s. Take ‘g’ constant with a value 10 m/s^2. The work done by the (i) gravitational force the (ii) resistive force of airs is:
28
Aug
Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m/s. Take ‘g’ constant with a value 10 m/s^2. The work done by the (i) gravitational force the (ii) resistive force of airs is: A particle of mass m [...]
A man A is sitting in a car at rest observes a man B on bike moving away from him with velocity 16 m/s^-1, a man C walking on road with velocity 2 m/s^-1 towards him and a bird flying with speed 20 m/s^-1 at angle 37 degree with horizontal as shown in (Fig. 5.74). Find the (a) velocity of car, bird, and man C as seen by man B. (b) velocity of car, bird, man B as seen by man C ( c) velocity of car, man B, and man C as seen by bird.
28
Aug
A man A is sitting in a car at rest observes a man B on bike moving away from him with velocity 16 m/s^-1, a man C walking on road with velocity 2 m/s^-1 towards him and a bird flying with speed 20 m/s^-1 at angle 37 degree with horizontal as shown in (Fig. 5.74). [...]
Tags:
A man A is sitting in a car at rest observes a man B on bike moving away from him with velocity 16 m s^-1 ,
a man C walking on road with velocity 2 ms^-1 towards him and a bird flying with spedd 20 ms^-1 at angle 37^@ with horizontal as shown in (Fig. 5.74). Find the (a) velocity of car ,
and man C as seen by bird. ,
and man C as seen by man B. (b) velocity of car ,
bird ,
man B ,
man B as seen by man C ( c) velocity of car ,
Water falls from a height of 60 m at the rate 15 kg/s to operate a turbine. The losses due to frictional forces are 10% of energy . How much power is generated to by the turbine? (g=10 m/s^(2)`.
28
Aug
Water falls from a height of 60 m at the rate 15 kg/s to operate a turbine. The losses due to frictional forces are 10% of energy . How much power is generated to by the turbine? (g=10 m/s^(2)`. Water falls from a height of 60 m at the rate 15 kg/s to operate a [...]
An engine pumps water through a hose pipe . Water passes through the pipe and leave with a velocity 2m/s. The mass per unit length of water in pipe is 100 kg/m . What is the power of the engine ?
28
Aug
An engine pumps water through a hose pipe . Water passes through the pipe and leave with a velocity 2m/s. The mass per unit length of water in pipe is 100 kg/m . What is the power of the engine ? An engine pumps water through a hose pipe . Water passes through the pipe [...]
The heart of a man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be 13.6 × 10^3 kg/m^3 and g = 10m/s^2, then the power of heart in watt is :
28
Aug
The heart of a man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be 13.6 × 10^3 kg/m^3 and g = 10m/s^2, then the power of heart in watt is : The heart of a man pumps 5 liters of [...]
Consider the situation given in Fig. Two cars are moving along road 1 and road 2. Draw the direction of the motion of a. Car B as seen from car A. b. Car A as seen from car B.
28
Aug
Consider the situation given in Fig. Two cars are moving along road 1 and road 2. Draw the direction of the motion of a. Car B as seen from car A. b. Car A as seen from car B. Consider the situation given in Fig. Two cars are moving along road 1 and road 2. [...]
A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is
28
Aug
A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest [...]
Two roads one , along the y – axis and another along a direction at angle theta with x – axis, are as shown in (Fig. 5.68). Two cars A and B are moving along the roads. Considerthe situation of the diagram. Draw the direction of (a) Car B as seen from car A. (b) Car A as seen car B.
28
Aug
Two roads one , along the y – axis and another along a direction at angle theta with x – axis, are as shown in (Fig. 5.68). Two cars A and B are moving along the roads. Considerthe situation of the diagram. Draw the direction of (a) Car B as seen from car A. (b) [...]