A biker is pedaling on an upwards slope What effect will add

A biker is pedaling on an upwards slope. What effect will adding the following elements have on the accleration, velocity, and power of the biker? Do not just state what each element will change (for example, this element will change the power), but also explain HOW the elements will change the biker (for example, adding this element will cause an INCREASE in velocity BEACAUSE ______________)...

a) Gears

b) Inertia of rotating parts on the bicycle

c) The effective radius of the wheels and tyres

d) Moving the centre of mass up or down; forward or back

Solution

A) GEARS

WHILE BICYCLING IF GEARS ARE AVAILABLE IT IS AN ADVNTAGE IN TERMS OF VELOCITY AND ACCLERATION

DUE TO GEARS WHILE RIDING BICYCLE UPWARDS VELOCITY INCREASAS,AS VELOCITY INCREASES ACCLERATION INCREASES,AND EFFORT REQUIRD FOR PEDALLING OF BIKER DECREASES.

BECAUSE OF USING BIGGER GEAR ON PEDAL AND SMALLER GEAR AT THE WHEEL VELOCITY,ACCLERATION INCREASES,EFFORT OF THE BIKER REDUCES

B) INERTIA OF ROTAING PARTS ON THE BICYCLE

BECAUSE OF INERTIA IT OFFERS RESISTANCE TO THE BIKER

DUE TO RESISATANCE ACCLERATION DECREASES,VELOCITY DECREASES,EFFORT(POWER) REQUIRED TO OVERCOME INERTIA INCREASES

C)THE EFFECT OF RADIUS OF THE WHEEL AND TYRES

AS RADIUS INCREASES CENTREOF GRAVITY OF VEHICLE INCREASES,THERE BY MORE POWER IS REQUIRED TO MOVE THE BICYCLE WHICH RESULTS IN INCREASING VELOCITY AND ACCLERATION.

D)MOVING CENTRE OF MASS UP OR DOWN

AS CENTRE OF MASS INCREASES,POWER OF BIKER INCREASES,THERE BY DECREASING VELOCITY AND ACCLERATION

TO CLIMB UP MORE EFFORT IS REQUIRED,CORRESPONDINGLY VELOCITY AND ACCLERATION DECREASES.