SPH4U /9 Assignment 2 Newton's Laws of Motion Your work must be clear to read. Show all steps in GRASS format. GRASS means given/required/analysis/solution/statement. You can type your solutions and answers, but neat handwriting is perfectly acceptable. Please submit your assignment as ONE PDF file on D2L. I do not accept any assignments via email after the due date. Problem: A gardener pushes down along the handle of a lawn mover of 20 kg mass with a force of 150 N. The handle makes an angle of 60° with the ground. Calculate the instantaneous acceleration of the mower if the frictional force between its wheels and the ground at that instant is 25 N.

A microscopic spherical dust particle of radius r and mass m is moving in outer space at a constant speed v. A wave of light strikes it from the opposite direction of its motion and gets absorbed. Part A)  Assuming the particle decelerates uniformly to zero speed in time t, write an equation for the average electric field amplitude in the light.

Use formula, D=RT to find T, if D = 20R = 60mph

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