Plz answer this questions
Answers
Q 16.
The correct option(according to me) is A. Both the statements are correct and statement 2 is the correct explanation of statement 1
Both the bodies have same momentum and 1 body is heavier than other body. then the heavy body must have a velocity lower than that of lighter body. Sure, Kinetic energy depends on mass but it is also depended on the velocity of body and by square. So, the velocity seems to have more impact on judging the kinetic energy of the body but there can be other situations as well.
Q.17)
The answer C) Q,P,S,R is correct
Speed of sound in aluminum = 5100m/s
Speed of sound in Nickle =4970m/s
Speed of sound in Brass = 4700m/s
Speed of sound in glass = 4540m/s
{Of course I didn't know it already, and I took help. You just needed your answer *shrug*}
Cheers!