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

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

Given, u = 54 km/h = 54 x 5/18 m/s = 15 m/s V = 0 and t = 5 s. Retardation, a = v – u/t = 0 – 15/5 = – 3 m/s ² Avg retardation force, ...