4 None of these 4 A car starts from rest with a constant

Last updated: 6/11/2023

4 None of these 4 A car starts from rest with a constant acceleration a for some time and attains a velocity vo Then it immediately retards at a constant rate a2 to rest The total time of journey is to Identify the correct velocity time graph 3 Vo Vo to V 3 V t 5 For the above situation let t be the time of accelerated motion and to be the time of retarded motion then the correct relation is a a a a 1 a t a t 2 a t a t 4 a t 2 a t 3 a t a t 6 The correct relation between vo a a and to is a a 2 2 4 to V Type Text a a a a 4 v aa t 2 V Id your responses to Comprehension Il A rocket is fired upwards such that its engine takes 10 s to explode fully Its velocity time graph is as shown in the figure Acceleration due to gravity is 10 m s v m s 1 3 2 3 4 1000 Choose the correct answer The total time for which the rocket moves upward is 1 10 s 3 110 s The height reached by the rocket till its engine explodes is 1 1000 m 3 10 000 m t s 2 100 s 4 20 s 2 5000 m 4 20 000 m The maximum height attained by the rocket is 1 5000 m 2 50 000 m 3 55 000 m 4 100 000 m sked by 3525574 aesl id Standard XI Stream JEE Jul 27 2021 at 6