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Ask Physics frac KINEMATICS Project

Problem from relative velocity

A Boat covers certain distance between two spots in a river taking t1 hrs going downstream and t2 hrs going upstream. What time will be taken by boat to cover same distance in still water?
posted by STUTI
Answer:
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Ask Physics kg Pawas Project Rituja

How can we define one Newton ?

How can we define one Newton? (Asked Pawas Rituja)
One newton is defined as that force which when acts on a body of mass 1 kg produces an acceleration of 1 m/s^2 in it
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Ask Physics brakes Force Mechanics Project

A simple numerical on momentum

Car mass is 1200 kg moving velocity is 108 km/hr. On applying brakes velocity reduced to 36 km/hr. Find change in momentum?
(posted by Aditi)
Answer: m=1200 kg
u=108 x 5/18=30m/s
v=36×5/18=10m/s
Change in momentum = m(v-u) = 1200 x (30-10)=1200 …

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Ask Physics Connected connected systems experimenter Force m1 m2 Mechanics Project

Numerical Problem from Motion of Connected systems

Two blocks A and B of mass m1 and m2 respectively are kept in contact on a frictionless table.The experimenter pushes the block A from behind so that the blocks accelerate. If  the block A exerts a force F on the block B,what is the force exerted by the experimenter on A.
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Ask Physics concept Electronics Force HC VERMA Physics Links Project satyam v 160

Solution to HC Verma Problem

“Referring to HC Verma Part 2, chapter 29, Electric field and potential, Q 69 I think that Force is inversely proportional to square of the distance between the charged particles, so acceleration is not constant and hence v*v  =  u*u  + 2*a*s   is not valid in this case. […]

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Ask Physics Force KINEMATICS lot Project solving problems THANK

Solving problems from kinematics and friction

I just want to know how to easily solve problems related to kinematics and friction. I don’t know why i always face problem in these two topics a lot…… Please help and tell some tricks to solve these both……. THANK U
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Ask Physics Current Electricity Electromagnetism Magnetism Project

Direction of magnetic field due to a current carrying conductor

“How do we know the direction of magnetic field around the current carrying conductor?” Asked Nikhil
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