Distance travelled by the first car in 5 hours = 60 × 5 = 300 km Remaining distance = 550 - 300 = 250 km Time for both cars to meet = distance/(relative speed ) = 250/(60+40) = 250/100 = 21/2 hrs = 2 hrs 30 min ∴ Both the cars will meet after 2 hrs 30 min means (10 am + 2 hrs 30 min) = 12 hrs 30 min
Which of the following does not affect the value of acceleration due to gravity?
A stone of mass 0.08 kg is thrown vertically upwards. Give the direction and magnitude of the net force on the stone during its downward motion. Ignore ...
In which medium can sound not travel?
A positron is an anti-particle of an electron, having the same mass but opposite charge to electron. Then, the minimum energy released in annihilation ...
The unit of measurement of noise is –
In which type of motion does the velocity of a body vary with time?
As we go from Equator to North pole the value of ‘S; the acceleration due to gravity
A toroid has a core (non-ferromagnetic) of inner radius 23 cm and outer radius 28 cm, around which 4000 turns of a wire are wound. If the current in th...
__________ is the same at every point on a rotating body.
What is inertia?
