Momentum and CollisionHard
Question
A sample of metal weights 210 grams in air, 180 grams in water and 120 grams in an unknown liquid. Then : -
Options
A.the density of metal is 3 g/cm3
B.the density of metal is 7 g/cm3
C.density of metal is 4 times the density of the unknown liquid
D.the metal will float in water
Solution
Density of metal = 
= 7g/cm3
density of liquid =
= 3g/cm3
= 7g/cm3density of liquid =
= 3g/cm3Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A machine gun fires a bullet of mass 40 g with a velocity 1200 ms-1. The man holding it can exert a maximum force of 144...If the density of the material increase, the value of Young′s modulus : -...A rocket of mass 4000 kg is set for vertical firing. How much gas must be ejected per second so that the rocket may have...A bag of mass M hangs a long thread and a bullet (mass m) comes horizontally with velocity v and gets caught in the bag....Two massless strings of length 5 m hang from the ceiling very near to each other as shown in the figure. Two balls A and...