circular motion, Physics

Assignment Help:
QUESTION 1
A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.5 N per kg of mass for each vehicle. Calculate the pull of the engine and the tension in the tow -bar when they are:
(a) Moving with constant velocity,
(b) Accelerating at 0.2m/s2

QUESTION 2
(a) A pump raises water through a height of 15m at the rate of 0.05m3 per second. What is the power of the pump?
(b) A constant force acts on a body of mass 2kg and does 45j of work. The effect on the body is that its final velocity is 2m/s more than its initial velocity. Find the initial velocity of the body.

QUESTION 3
(a) A hose (cross-section 4cm2 ) delivers water horizontally with a speed of 25m/s. What is the impulse of the water on a vertical wall (assuming no rebounds)? What average force acts on the wall?
(b) Two masses of 30kg and 20kg, traveling at 4m/s and 1m/s respectively in the same direction, collide and continue together. Find their common speed after the collision?

QUESTION 4
(a) A 600 kg satellite is in circular orbit about Earth at a height above Earth equal to Earth‘s mean radius. Find:
(i) The satellite’s orbital speed,
(ii) The period of its revolution ,
(iii) The gravitational force acting on it.
(b) A 50g mass moves as a conical pendulum with string length 9 x and speed v. if the radius of the circular motion is 7 x find:
(i) The string tension (answer to 2 d .p.),
(ii) V in terms of x, g.



Related Discussions:- circular motion

Aameter, aameter - construction and working

aameter - construction and working

Illustrate kirchhoffs law in electricity, Illustrate Kirchhoff's law in ele...

Illustrate Kirchhoff's law in electricity and apply them to Wheatstone bridge to get its balancing condition. Illustrate the basic principle of meter bridge. Define an experimen

What is a digital signal, What is a digital signal? Describe the function o...

What is a digital signal? Describe the function of modem in data communication. Write two benefits of digital communication

Measurement of refractive index, Hence refractive index µ can be determine ...

Hence refractive index µ can be determine by measuring the diameter of Newton's rings first with air and then with the liquid for same value of m.

What wavelength is formed by an organ pipe-open at both ends, An organ pipe...

An organ pipe which is open at both ends resonates at its fundamental frequency. Neglecting any end effects, what wavelength is formed by this pipe in this mode of vibration if the

Explain ball bearings, Ball bearings Place some marbles in the lid of...

Ball bearings Place some marbles in the lid of a tin on the floor. Put single foot on the marbles and notice how simply you can spin round.

Moments, ways and rules of finding moment of force

ways and rules of finding moment of force

Can you give the s.i unit of electric displacement vector, Can you give the...

Can you give the S.I unit of electric displacement vector?

Describe the operation of a transistor amplifier, Describe the operation of...

Describe the operation of a transistor amplifier in CE configuration. Ans:  Operation  of  a  Transistor  Amplifier  in  CE  configuration:    A  Common  Emitter  NPN transist

Determine potential difference between two points, If 10 joules of energy a...

If 10 joules of energy are required to move 5 coulombs of charge between two points, the potential difference between the two points is equal to how many volts? Ans: If 10 j

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd