Calculate the normal force acting on a 150 kg cart that is at rest.

N = 1471.5[N]

Explanation:

We must remember that anybody lying on a horizontal surface, the normal force is defined as the vector corresponding to the force of equal magnitude to the product of mass by gravity, but in the opposite direction to the vector of weight.

To calculate the magnitude of the normal force (equal to weight), we can perform the product of mass by gravity.

where:

w = weight [N] (units of Newtons)

m = mass = 150 [kg]

g = gravity acceleration = 9.81 [m/s²}

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

magnets not strong enough

explanation: