Solve -AIATSQno-15-Q15- A body is moving with a velocity v and under a constant retardation such that it travels a maximum displacement of 20 m in 5 s- It will return back to its initial position with speed nbsp- nbsp- -1- 5 m ndash-1 nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- -2- 10 ms ndash-1 nbsp- nbsp- -3- 40 m ndash-1 nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- -4- 8 nbsp-m ndash-1- nbsp-

Dear Student, nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp;With #160;which #160;veloc ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Physics

Derivation of Velocity-Time Relation by Graphical Method

Solve (AIATSQ...

Question

Solve (AIATSQno.15)

Q15. A body is moving with a velocity v and under a constant retardation such that it travels a maximum displacement of 20 m in 5 s. It will return back to its initial position with speed

(1) 5 m^–1 (2) 10 ms^–1

(3) 40 m^–1 (4) 8 m^–1

Open in App

Solution

Dear Student,
$W i t h w h i c h v e l o c i t y i t s t a r t e d . i t w i l l r e t u r n t o i t s i n i t i a l p o s i t i o n w i t h s a m e v e o i t y i n o p p o s i t e d i r e c t i o n l e t r e t a r d a t i o n i s a t h e n b y f i r s t e q u a t i o n o f m o t i o n (h e r e v i s i n i t i a l v e l o c i t y f i n a l v e l o c i t y i s z e r o) v = 5 a - - - - - 1 a n d b y t h i r d e q u a t i o n o f m o t i o n v^{2} = 40 a - - - 2 d i v i d e 2 b y 1 w e g e t v = 8 m / s$

Suggest Corrections

Similar questions

Solve the following:

A) An engine is moving with a velocity 44 m/s. After applying the brakes, it stops after covering a distance of 121 m. Calculate retardation and time taken by the engine to stop.

B) A body starts from rest and moves with a constant acceleration. It travels a distance $S_{1}$ in first 10s, and a distance $S_{2}$ in next 10s. Find the relation between $S_{1}$ and $S_{2}$ . [5 MARKS]

Q. A body starts moving with a velocity

v_{0} = 10 {m s}^{- 1}

. It experiences a retardation equal to

\frac{1}{5} v^{2}

. Its velocity after

2 s

is given by

A train travels from city A to city B with a constant speed of 10 $m s^{- 1}$ and return back to city A with a constant speed of 20 $m s^{- 1}$ . Find its average speed during its entire journey.

Q. A body goes from one place to another with a velocity of 15 m/s and returns to its initial position with a velocity of 20 m/s. The average velocity of the body during its journey is ______________.

Solve graphically. A body starting from rest is moving with an acceleration of 3 m/ s² After 10 s, it continues to move with zero acceleration for 20 more seconds. It then retards and comes to a stop within the next 5 seconds. Find its total displacement. [3 MARKS]

Join BYJU'S Learning Program

Solve (AIATSQno.15) Q15. A body is moving with a velocity v and under a constant retardation such that it travels a maximum displacement of 20 m in 5 s. It will return back to its initial position with speed (1) 5 m–1 (2) 10 ms–1 (3) 40 m–1 (4) 8 m–1

Solve (AIATSQno.15)

Q15. A body is moving with a velocity v and under a constant retardation such that it travels a maximum displacement of 20 m in 5 s. It will return back to its initial position with speed

(1) 5 m^–1 (2) 10 ms^–1

(3) 40 m^–1 (4) 8 m^–1