A1.docx kinematics numericals for IB physics

a1 document

2. (0) The graph shows the variation ofthe velocity ofan object moving on a straight In

1) The tance covered e 108 m. The deceleration I 8.0m 2°, Determine the duration of the
fi Plot a graph o show the variation of postion with ime. Take the inital position to be ero.

(6) Abo dropped from are height above ground. Ar resistance snot negligible The bal
reaches terminal speed Sketch graph hat shows the variation with me ofthe position of
the bal,

(4) Abalisthrowm upwards rom the edge ol if with speed 30 ms The ball reaches the
sea below the cif ater 8s, Al resstnce lnea
() Determine the high ofthe it.

(i) Caleuate the speed ofthe bal a itis the sa,
(il) Estimate the average speed ofthe bal

(e) Aprojecttefs launched vertically upwards. At times t= 2.0 sand 4.0 the height of th
projectile above ground ithe same, Determine the maximum height ofthis project.

{9 Aprojetles launched horizontaly wth speed 20 ms . Determine the angle between the
velocity and the horizontal after 2s,

(6) The top ofthe horizontal crossbar in footballs 2.56 m from the ground. A penalty kick is
taken at 1 m from the middle of the gol ine. The balls Kicked with speed 25 m sat a
angle of 19 to the horizontal, The ball travel along a vertical plane through the middle of
the goalpost. The radis ofa soccer ball is 12 em.

— wot to scale

Determine if there wi be a goa

3. (a) Deserve the conditions for circular motion to take place.

(0) A mess of 2.0 gis attached toa string The string Is horizontal. The mass is released

/

Determine the tension In the string when the balls atts lowest point In Its path

Cale the number of evens per second made bythe ba
Callate the maximum speed at which the al an move without breaking the tng.
ng does po break

4. (a) ine singin) replace y sprig thebeats the sr

1

WU

Determine the atone eer of alo late potenti enr fhe or

() The digram shows a op the op toy. The ads ofthe dle à 0.20m

0 hat the ball never loses contact withthe rack at pont.

‘The ballin (snow te to the end ofa id od
circle with constant speed 4.0 m © At the

5. (Draw the forces on the ball atthe position sh
(il) Caleulate the tension in the rod at the

6. (0) Tree coplanar forces of equal marine 5 act on a bad. The angle between any tw
adjacent forces ie 120

Determine te resultant fore onthe boy

‘rng ande fly mmerzed im guid of deny 1300 ig. The body isin ego

0 Dezw and ial forces on the body
(9 Gite the tension in shearing

‘The tring ct. Cute te int acceleration ofthe body.

(The container very deep. The quis viscous with avisas of 56 mPa Ein
why the body wil reach terminal peed
Ce

eee = denies A oi de AA

7. tai cou = block and the incline 120.0 and the kinetic

Determine the largest ae the smallest mass m that can hang from thesrngsothat we

8. (2) Abiockofması2 5 kg moving 2 60 ms" colides with a matonary block of maze 7 Ske Aer
the colon the wo hocks move together

(Caire the common speed ofthe blocs afer the coi.
©) Determine the kinetic energy hat wat len he clic.

(9) Abal of mats 0.20% fale verily rom rest rom 2 height of 20m. The tll rebounds to =
ge of 15m The balai contact with the oo or 025 2

Determine
(D the magnitude ofthe impute deivered tothe Boor,
(©) the average force that he bal eee on the io

(6) Apoloniam maceus (mass 210) decays atve into nies of ead (mas 206 u) and an alpha
parte (ass 4)

(Caca the ra of he kinetic energy ofthe sip panic wo that ofthe lead muelas
fo) The energy else the decays 65 MeV. Etimase the energy cad bythe sha pace,

(@) Alok of mass Mie sacred to 2 spring ons horizontal fictions table. The ping ha 2s
natural lengih. A projecte of mazzm and speed colides and gets embedded in he block

ann]

Arden ins thet momentum conservation cannot be apple ro is elon because
thc ni cant az on do beh Epi iy testcase
Fine an expression forthe speed ofthe Hock immediatey ater the cli.

9. The folowing we acabe
Ms 40e m2 00501 v= 220m

Desernine the manmum compresion ote aire.

A rocit, rst in ote space, rs ont engines jet gares 2 eof Sg wth

Desarme the fore that wa accelerate the roche.
me the nil serien of he roc
Deserve how the acer fe ro ai with 5

10. A.1 Kinematics

4 pros an jet erally at = 0

Mal Tan boire compo wakes

fll Then angie ben ha loci af object Tata cy | Weal ana

ihe post whee

Box C Oo

‘Whee dance take ye ack te
A 25m

8 som

© Som

D

À met

11. ‘peed ote ais 1205" Deir, As ar rece iz

net o vrs wih ef be vera Stow are al oo e e
ca, ld aol races 7

owe as ea led E
speed Steen ges an pms sa

12. 1

describe

ments about the motion of a body,

ng with constant speed cannot be

13. B ¡only
© iion)y
D iandiii

Which of the following statements about the motion of a body
is false?

A Itis not possible to travel at a constant speed for 1 minute
1d have a displacement of zero.

not possible to travel at a constant velocity for 1
minute and have a displacement that is zero

must have a non-zero displacement

A man walks eastwards a distance of 4.0 km and then moves
northwards a distance of 3.0 km.

Which of the following statements correctly describes
overall displacement of the man?

A 7kmin a direction that is 53° north of eastwards
7 km in a direction that is 37° north of eastwards
5 km in a direction that is 37° north of eastwards
5 km in a direction that is 53° north of eastwards

A racing car acceler ‚m rest at 4 ms”? until it has

travelled a distance of 50 m. The final speed of the car is: