Two particles having position vectors r1 3i 5j

Asked by admin @ 29/08/2021 in Physics viewed by 332 People

Two particles having position vectors r1=(3i+5j)m r2= (-5j+3j)m are moving with velocities v1 = (4i-4j )m/s and v2=(-ai+3j)m/s .if they collide after 2 seconds ,the value of 'a' is

Answered by admin @ 29/08/2021

In this question, Second Equation of Motion is to be used and also in this case the acceleration is zero, a=0
two objects collide when their position vector is same.

Also, I have used s instead of r.

Now, You see, This Question is Wrong, Two objects moving under given conditions will never collide.

But Let's just say that you have misread this question.
Now The Question can be rectified only if value of v₂ is

v₂= (-ai - 3j)

Then The answer would be a= -8

You can figure that out for Yourselves

Thank U, for Your Time.

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 1204 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1147 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 1099 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1096 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1080 persons

Two particles having position vectors r1 3i 5j

Similar Questions

A particle moves from position r1 3i 2j 6k

When you multiply two negatives do you get a positive

A positively charged particle is released from rest

Two particles are oscillating along two close parallel

Two vectors a and b have equal magnitudes

If the magnitude of sum of two vectors

The position of a particle is given by

Resultant of two vectors of equal magnitude a is

If a and b are two odd positive integers

Two particles 1 and 2 are allowed to descend

The sum of magnitude of two vectors is 16

A position dependent force f acting on a particle

If a1 and a2 are two non collinear vectors

A vector f1 is along the positive x axis

Two forces acting on a particle in opposite directions

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