Before hanging new william morris wallpaper in her bedroom, brenda sanded the walls lightly to smooth out some irregularities on the surface. the sanding block weighs 1.70 n and brenda pushes on it with a force of 3.00 n at an angle of 30.0° with respect to the vertical, and angled toward the wall. what is the coefficient of kinetic friction between the wall and the block?

Which of the following is an example of motion in two dimensions?

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.