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

Determine the wavelength of the wave, A longitudinal wave with a frequency ...

A longitudinal wave with a frequency of 34 Hz takes 1.0 s to travel the length of a 2.5 m Slinky (see the figure). Determine the wavelength of the wave. λ = ( )m

Explain different logic gates, There are mainly three parts of Logic gates ...

There are mainly three parts of Logic gates (1)          The 'OR' gate (i) It has two inputs (A and B) and only one output (Y) (ii) Boolean expression is Y = A + B (iii

Are heat fuses necessary, Are heat fuses necessary? The working temper...

Are heat fuses necessary? The working temperature range of the fiber optics ordinary end is critical if the performance of the system is to be kept and the life guaranteed. A

Magnetic effects of electric current, How to find out neutral point ? What...

How to find out neutral point ? What all things we require to equate or form a equation to find the neutral poind and how to do it?

Density of energy state, Q. What is the density of energy states in metals?...

Q. What is the density of energy states in metals? Obtain an expression for the density of states for free electron gas in metals.   Ans.  Density of energy state is define

Resistivity, What components/materials are chosen because of their especial...

What components/materials are chosen because of their especially high resistivity and explain why high resistivity

What is electric potential and electric potential energy, Q. What is the di...

Q. What is the dissimilarity between electric potential and electric potential energy? Ans: Suppose you desire to know the electric potential energy that a particular part

What is dual character of light, Q. What is dual character of light? L...

Q. What is dual character of light? Light behaves as particles of energy in the higher energy region as well as as waves in the lower energy region.

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