A simple pendulum has a string of length l

Asked by admin @ 20/08/2021 in Physics viewed by 331 People

a simple pendulum has a string of length l and bob of mass m. when the bob is at its lowest position, it is given the minimum horizontal speed necessary for it to move in a circular path about the point of suspension. The tension in the string at the lowest position of the Bob is

Answered by admin @ 20/08/2021

This question solve by method of conservation of energy.
at the highest position tension in string is zero .now we proceed
mg=mv^2/l at tje highest position
v^2=gl
now at the lowest position
apply conservation of energy
1/2mv^2+mg.2l=1/2mv'^2
v'2=5gl
where v'is velocity of bob at lowest position
now, T=6mg

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ 13/01/2021 in Physics viewed by 1206 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1150 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1101 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1098 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1082 persons

A simple pendulum has a string of length l

Similar Questions

A wire of length l and radius r

A simple pendulum with bob of mass m

If two rods of length l and 2l

A thin wire of length l and mass m

Two rods of equal mass m and length l

The variation of potential difference v with length l

A bar magnet of length l and magnetic dipole

A simple pendulum having a bob of mass m

A wire of uniform cross section and length l

The vibrations of a string of length 60cm fixed

A wire of uniform cross section a length l

Two identical thin bar magnets each of length l

The mass of a simple pendulum bob is 100g

A light rod of length l has two masses

Calculate the velocity of the bob of a simple pendulum

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Hc verma physics class 9 solutions of describing motion

How to leave nightmare land answer key

Base area and stability of some objects with different shapes

Which of the following statements about safe lifting are correct

Porous water-absorbing mass of fibers

Absorption of water by filter paper is due to

A composite wire of uniform diameter 3mm

At a distance l 400m from the traffic light

A rocket of mass m is launched straight up with thrust f⃗ thrust.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Mind map for light reflection and refraction class 10

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

A thief runs at a speed of 10m s

A 5.8 x 10 4 watt elevator motor can lift