A block of mass 1.80 kg is pushed up against a wall by a force i that makes an angle of e = 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.300. (a) Determine the possible values for the magnitude of p that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.) |Pmax! N N |P min (b) What happens if pi has a larger value than Pmaxl? The block slides up the wall. The block does not slide along the wall. The block slides down the wall.

A block of mass 1.85 kg is pushed up against a wall by a force P that makes an angle of e = 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.253. Use g=9.8 m/s2. (a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.) |Pmaxl = |Pmin! N

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A student is trying to determine the critical angle (0) at which block will slide down an incline. She knows the coefficient of static friction between the incline and the block is 0.53 and the coefficient of kinetic friction is 0.44. Neglect drag. Hint: One way to solve the problem is to solve for all quantities in terms of m, e and g (but not u), then use f= uN and a trig identity to solve for 0. What is the critical angle? 13 Would the the block slide if the incline angle were 35°? cannot be det check answers I Rain to st