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Subject: Physics, asked on 4/5/18

A single fixed pulley and a movable pulley both are separately used to lift a load of 50kgf to the same height Compare the efforts applied.

Subject: Physics, asked on 1/6/20

Why does the Velocity Ratio of a Machine remain constant? Plz, give me an exact answer. The answer should be Handwritten and not from GOOGLE......

Subject: Physics, asked on 18/6/18

A jet plane starts from rest at S=0 and is subjected to the acceleration shown.determine the speed of the plane when it has travelled 60m

Subject: Physics, asked on 28/4/18

Plz answer me all parts of ques . 7

Subject: Physics, asked on 31/7/18

What is the velocity ratio of single movable pulley how does the friction inthe pulley bearing affect it?

Subject: Physics, asked on 30/5/20

Plz see whether the statement said by me is correct or wrong:-
In actual machine the Machanical Advantage is always less than the Velocity Ratio.
Plz state the reason for the above statement.??????

Subject: Physics, asked on 16/9/18

Compare and contrast Railways with Airways.

Subject: Physics, asked on 1/4/19

15. Plz fast

Subject: Physics, asked on 1/5/18

Plzz answer me this question.
Q.10. Fig. 3.18 below shows a wheel barrow of mass 15 kg carrying a load of 30 kgf with its centre of gravity at A. The points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB = 20 cm and AC = 40 cm.


Find : (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.
Ans. (a) 20 cm (b) 60 cm, (c) 3 (d) 15 kgf

Subject: Physics, asked on 31/5/20

Please state the examples of Lever 2 and do explain them clearly...... At least 3 examples.

Subject: Physics, asked on 11/5/18

!!!"DO NOT SEND ANY LINKS"Answer the 4th question

Q4. The below figure shows the combination of a movable pulley P1 with a fixed pulley P2 used for lifting up a load W.
                               

    (i) State the function of the fixed pulley P2.

    (ii) If the free end of the string moves through a distance x, find the distance by which the load W is raised.

    (iii) Calculate the force to be applied at C to just raise the load W = 20 kgf, neglecting the weight of the pulley P1 and friction.

                    (Ans. changes direction, d2, F = 10 kgf) (ICSE 2005)

Subject: Physics, asked on 25/6/19

Solve this sum

Subject: Physics, asked on 5/6/18

A walnut can be broken by applying a direct force of 50kgf. If walnut is placed in a nut cracker the length of whose handle is 18cm and 2cm from the pivot . Calculate minimum force required to crack nut .
Long answer and with formula and diagram . no link

Subject: Physics, asked on 26/5/18

Question no.3
3. A force of 5 kgf is required to cut a metal sheet. A shears used for cutting the metal sheet has its blades 5 cm long, while its handles are 10 cm long. What effort is needed to cut the sheet?

Subject: Physics, asked on 27/6/18

A pulley system has three pulleys . A load of 120N is overcome by applying an effort of 50N. Calculate the mechanical advantage and efficiency of this system .

Subject: Physics, asked on 29/6/18

Question number 9

Subject: Physics, asked on 5/6/18

A nut can be opened by a lever of length 0.25cm by applying a force of 80N .What should be the length of lever if a force of 32N is enough to open nut? Long answer with formula and diagram . No link

Subject: Physics, asked on 14/9/18

Please answer this question quickly

Subject: Physics, asked on 18/5/18

Sir, wht's this topic means???

Subject: Physics, asked on 20/3/20

Please solve question no.4.

Jik
Subject: Physics, asked on 11/7/18

A person of mass 60 kg is in the lift the change in apparent weight of the person when the lift moves up with acceleration 2m/s2 then down with acceleration 2 2m/s2 is ...........??take gravity as 10m/s

Subject: Physics, asked on 19/7/18

write a program in java to calculate the electricity bill of a consumer according to the units consumed. The tariff is given below: first 100 units-rs.2.00 next 200 units-rs.3.00 above 300 units-rs.5.00 (by using parameterized method)

Subject: Physics, asked on 28/4/18

Plzz answer me 7th question.

Subject: Physics, asked on 21/3/20

Please solve question no.6.

Subject: Physics, asked on 24/6/18

An effort of 4 k g f is applied on a machine through a displacement of 100 cm when a load of 100 kg through a distance of 4 cm. find the velocity ratio mechanical advantage and efficiency of the machine.

Subject: Physics, asked on 5/6/20

Please
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