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An ox can a maximum force of 1000 N.It i...

An ox can a maximum force of 1000 N.It is taking part in a cart race and is able to pull the cart at a constant speed of 30 `ms^(-1)` while making its best effort.Calculate the power developed by the ox.

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To solve the problem of calculating the power developed by the ox, we can follow these steps: ### Step 1: Understand the formula for power Power (P) can be calculated using the formula: \[ P = \frac{W}{t} \] where \( W \) is work done and \( t \) is the time taken. ### Step 2: Relate work done to force and displacement ...
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Ram and Ali have been fast friends since childhood. Ali neglected studies and now has no means to earn money other than a channel whereas Ram has become an engineer. Now both are working in the same factory. Ali uses camel to transport the load within the factory. Due to low salary and degradation in health of camel, Ali becomes worried and meets his friend Ram and discusses his problems. Ram collected some data and with some assumptions concluded the following: i. The load used in each trip is 1000kg and has friction coefficient mu_k=0.1 and mu_s=0.2 . ii. Mass of camel is 500kg . iii. Load is accelerated for first 50m with constant acceleration, then it is pulled at a constant speed of 5ms^-1 for 2km and at last stopped with constant retardation in 50m . iv. From biological data, the rate of consumption of energy of camel can be expressed as P=18xx10^3v+10^4Js^-1 where P is the power and v is the velocity of the camel. After calculations on different issues, Ram suggested proper food, speed of camel, etc. to his friend. For the welfare of Ali, Ram wrote a letter to the management to increase his salary. (Assuming that the camel exerts a horizontal force on the load): The ratio of the energy consumed by the camel during uniform motion for the two cases when it moves with speed 5ms^-1 to the case when it moves with 10ms^-1

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ICSE- WORK ENERGY AND POWER-EXERCISE-2(A) (NUMERICALS)
  1. A body ,when acted upon by a force of 10 khf , get displaced by 0.5 m....

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  2. A boy mass 40 kg climbs up the stairs and reaches the roof at a height...

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  3. A man spend 6-4 KJ energy in displacing a body by 64 m in the directio...

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  4. A weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. ...

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  5. A machine raises a laod a 750 N through a height of 16 m in 5 s.Calcul...

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  6. An electric heater of power kW is used for 10 h.How much energy does i...

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  7. A water pump raises 50 litres of water through a height of 25 m in 5 ....

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  8. A pump is used to lift 500 kg of water from a depth of 80 m in 10 s .C...

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  9. An ox can a maximum force of 1000 N.It is taking part in a cart race a...

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  10. The power of a motor a is 40 kW .At what speed can the motor raise a l...

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  11. Rajan exerts a force of 150 N in pulling a cart at a constant speed of...

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  12. A boy weighing 350 N climbs up 30 steps.each 20 cm high in 1 minute .C...

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  13. IT takes 20 s for a person A of mass 50 kg to climb up the stairs. Whi...

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  14. A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in...

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  15. A man raises a box of mass 50 kg to a height of 2 m 10 s,while another...

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  16. A boy takes 3 minutes to lift a 20 litre water bucket from a 20 m deep...

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