Find the projection of the force Fx acting on a body with a mass of 400g

Find the projection of the force Fx acting on a body with a mass of 400g, if the body moves in a straight line and its coordinate changes according to the law x = 10-5t + t ^ 2

Problem data: m (body weight) = 400 g (in SI m = 0.4 kg); the law of variation of the coordinate x = 10 – 5t + t ^ 2.

The required projection of force can be determined by the formula: Fx = m * a = m * x ” = m * (10 – 5t + t ^ 2) ” = m * (0 – 5 * 1 + 2 * t) ‘= m * (0 + 2 * 1) = m * 2.

Let’s make a calculation: Fx = 0.4 * 2 = 0.8 N.

Answer: The required force projection is 0.8 N.