00:01
Let m be the mass of the vehicle, which is given us 2 tons.
00:04
1 ton equal to 10 to the power 3 kg.
00:06
So this is 2 into 10 to the power 3kg.
00:10
Let vx be the velocity of the vehicle along the surface of the road, and this is 20 meter per second.
00:17
M .g is the weight of the vehicle, where g is the acceleration due to gravity, that is equal to 10 meter per second square.
00:24
So we have mg equal to 2 into 10 to the power 4 newton.
00:30
Now, let small f be the force of friction which is acting in a direction opposite to the motion of the vehicle.
00:37
So if we say that the vehicle is moving along the positive x direction, f is along the negative x direction.
00:43
So small f is equal to 10 % of the weight, that is 10 % of mg, and this gives us 2 into 10 to the power 3 neutron...