I cant do number 28. 1425. A car which is initially at rest rolls down a Asmooth inclined plane as shown below.Which of the speed-time graphs best representsthe motion of the car?A speedB speedC speedCA frictionC weight4020-time26. A heavy-laden trolley in a supermarket is difficultto start from rest and difficult to stop while it ismoving. This is due to itsB inertiaD0+time11 20D speed27. The following graph represents two objects Aand B in a state of linear motion. Which one ofthe following statements is correct?velocity/m s-13momentum4 5B0-Atimetime/stimeBA B overtakes A at the end of the third second.B overtakes A at the end of the fifthsecond.In the first three seconds, the averagespeed of B is greater than that of A.DIn the first five seconds, the average speedof B is greater than that of A.( )All About Physics: Multiple-Choice Questions Workout 'O' level28. A car slides down an inclined surface PQ andmoves horizontally along QS. QR is a roughsurface whilst PQ and RS are frictionless.Between which of the following points onits path does the object move with constantspeed?A P and QCR and SwoleAC29. On which of these slopes does the ball rolldown with increasing speed and decreasingacceleration? (Neglect frictional forces)v/m ssmooth surface16.rough surface smooth surfaceRein aS8930. The figure below shows the acceleration-timegraph of an object, moving towards the right.a/m s-2A2C v/m s¹168:8:aB Q and RDQ and SWhich of the following curves correctly showsthe velocity-time graph of the object?AB24 t/sB24 t/sDD24v/m s16-168v/m s-1-t/st/s-t/s

Answered: Image /qna-images/answer/c3cbd71f-7f8a-441f-aa55-4977d68d9269.jpg

A car slides down an inclined surface PQ and moves horizontally along QS. QR is a rough surface whilst PQ and RS are frictionless. Between which of the following points on its path does the object move with constant speed? P A P and Q CR and S smooth surface rough surface smooth surface R S 0 B Q and R DQ and S

A car slides down an inclined surface PQ and moves horizontally along QS. QR is a rough surface whilst PQ and RS are frictionless. Between which of the following points on its path does the object move with constant speed? P A P and Q CR and S smooth surface rough surface smooth surface R S 0 B Q and R DQ and S

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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