00:01
Hello everyone today we are going to find the answer for the following set of given questions so let's get started with the first question so in first question the speed of car is double what happened to its kinetic energy so kinetic energy formula is nothing but half mv square so it is clear that kinetic energy is directly proportional to the velocity square so the correct option will be option d quartopled.
00:34
So let's move on to the next question.
00:38
In 58th question, the given data's are mass is 1 into 10 power 3 kilogram and velocity is 4 meter per second.
00:49
So we have to determine the kinetic energy.
00:53
So we all know that formula of kinetic energy is half mv square.
01:00
So now we are having the values.
01:01
We'll just substitute and find the answer 1 by 2 into 10 power 3 into 4 square.
01:13
So now when i solve this i will get the value as 8 into 10 power 3 joules.
01:21
So option 3 is the right answer.
01:28
So let's move on to the next question.
01:33
So in this question we are going to just calculate the speed of cut.
01:40
R...