Class 9 Science Terminal Exams MCQ Solutions Class 9th Science Session 2022-23 9th Science Terminal Exam Based MCQ Extra Questions Class IX Science MCQ Extra Questions Answers

Class 9 Science Terminal Exams MCQ Solutions Class IX Science MCQ Extra Questions Answers 9th Science Terminal Exam Based MCQ Extra Questions Class 9th Science Session 2022-23

When a person jumps, the trapaulin gets depressed at the place of impact, therefore impact time interval increases, which decreases the change in momentum. As a result, person experienced a very small force, hence he receives no injury.

Given, m = 500 kg, u = 5 m/s and t = 20 s. Resultant force, F = 500 – 200 = 300 N Acceleration, a = F/m = 300/500 = 0.6 m/s² by question of motion: v = u ...

Class IX Science MCQ Extra Questions Answers Class 9th Science Session 2022-23 Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions