PYQSidePowered byPrepblink ExamsMy practice

Motion in a Straight Line

JEE Main 2024 (Online) 29th January Morning ShiftMCQEasy📈 Topic in 16% papers+4−1
Ques. 1JEE Main 2024, 29 January (Morning Shift)

A body starts moving from rest with constant acceleration covers displacement S1 in first (p-1) seconds and S2 in first p seconds. The displacement S1+S2 will be made in time :

  1. (2p+1) s
  2. (2p-1) s
  3. (2p2-2p+1 )s
  4. (2p2-2p+1 ) s

Answer

(4) (2p2-2p+1 ) s

Solution

From rest: S= 12at2

S1= 12a(p-1)2, S2= 12ap2

Let S1+S2 be covered in time t:

12at2= 12a [(p-1)2+p2 ]

t2=2p2-2p+1

t= 2p2-2p+1 s

Answer: (4)

Keep practising — Motion in a Straight Line

Ques. 2JEE Main 2024, 29 January (Evening Shift)

A particle is moving in a straight line. The variation of position 'x' as a function of time 't' is given as x= (t3-6t2+20t+15 )m. The velocity of the body when its acceleration becomes zero is :

  1. 6 m/s
  2. 10 m/s
  3. 8 m/s
  4. 4 m/s
Ques. 3JEE Main 2024, 27 January (Evening Shift)

A bullet is fired into a fixed target loses one third of its velocity after travelling 4 cm. It penetrates further D 10-3 m before coming to rest. The value of D is :

  1. 2
  2. 5
  3. 3
  4. 4
Ques. 4JEE Main 2024, 27 January (Evening Shift)

A body falling under gravity covers two points A and B separated by 80 m in 2 s. The distance of upper point A from the starting point is m (use g=10 ms-2).

All Motion in a Straight Line PYQs →

PDFDownload Motion in a Straight Line PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All JEE Main Physics chapters