CBSE > Class 11 > Physics | CBSE Board | Homework Help

Weight of car = 1800 Kg
Distance of COG from front axle = 1.05 m
Distance of COG from back axle = 1.8 - 1.05 = 0.75 m
Vertical forces are balanced ,
So,At translational equilibrium:
R₁ + R₂ = mg
R₁ + R₂ = 1800 _{{tex}\times{/tex}} 9.8 = 17640

R₁ and R₂ are the forces exerted by the level ground on the front and back wheels respectively.
Angular momentum about centre of gravity is zero.
So,
R1(1.05) = R2(1.8 - 1.05)
{tex}R _ { 1 } \times 1.05 = R _ { 2} \times 0.75{/tex}
{tex}\frac { R _ { 1 } } { R _ { 2 } } = \frac { 0.75 } { 1.05 } = \frac { 5 } { 7 }{/tex}
{tex}\frac { R _ { 1 } } { R _ { 2 } } = \frac { 7 } { 5 }{/tex}
R₁ = 1.4 R₂…..(ii)
Solving equations (i) and (ii), we get:
1.4 R₂ + R₂ = 17640
{tex}R _ { 2 } = \frac { 17640 } { 2.4 } = 7350 \mathrm { N }{/tex}
{tex}\therefore{/tex} R₁ = 17640 - 7350 = 10290 N
Therefore, the force exerted on each front wheel {tex}=\frac { R_1 } { 2 }= \frac { 7350 } { 2 } = 3675 N{/tex}, and
The force exerted on each back wheel {tex}= \frac { R_2 } { 2 }=\frac { 10290 } { 2 } = 5145 N{/tex}

0Thank You

ANSWER

Calculate the mass of a body weighting 100 Newton. Take g=9.8m/s Square

Posted by Gauri Suthar 6 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Shivv Púrøhît 6 years, 4 months ago

m=? g=9.8m/sⁿ .......(n=2) F=100N W.k.t F=mg =>100=m.9.8 =>m=100/9.8=10.204 kg

1Thank You

ANSWER

What is a upthrust force explain it briefly

Posted by Somya Mehta 6 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Mahatma Cbse 6 years, 4 months ago

It is the force applied by a fluid on a body floating on it. When a body completely or partially floats on fluid , the body produces an downward force i.e weight. To balance this liquid gives an upward force which is called as upthrust.

0Thank You

ANSWER

Find the CM of a sector of wire of angle θ having linear mass density µ and radis R, hence write CM of semicircular wire.

Posted by Yuvraj Kumar 6 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

In a ballistics demonstration a police officer fires a bullet of mass 50.0g with speed 200m/son soft plywood of thickness 2.00cm.The bullet emerges with only10% of its initial kinetic energy.What is the emergentspeed of the bullet

Posted by Vaishak Gopakumar 6 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State and explain Newton third law of motion

Posted by Rohit Singh 6 years, 4 months ago

CBSE > Class 11 > Physics

6 answers

Pawni Chaudhary 6 years, 4 months ago

Then why asking

0Thank You

Somya Mehta 6 years, 4 months ago

The Newton's third law of motion states that every action has an equal and opposite reaction that can be explained by there should be two objects that are equal in magnitude and opposite in directions and that are similar in nature like the two forces are friction or normal reaction or tension

0Thank You

Alok Singh 6 years, 4 months ago

Every action has an equal and opposite reaction.

0Thank You

Pawni Chaudhary 6 years, 4 months ago

In each and every action there is equal and opposite reaction

1Thank You

Rohit Singh 6 years, 4 months ago

I know every action has equal and opposite reaction

0Thank You

Alok Uttam 6 years, 4 months ago

according to newton third law of motion the action on an object is always equal and opposite to the object