1) Sid the Party Slug has a mass of 42 kg. He starts from rest and accelerates (like a slug) through a distance of 141 m in 8.3 seconds. 42/kg a) Calculate the acceleration of Sid. FF b) How much force does Sid exert. my c) At the end of the 141 meters, Sid reaches rough ground where the coefficients of friction are µ, = 0.61 and µ = 0.48. Which coefficient of friction do we use to determine Sid's acceleration? d) Assuming the force exerted by Sid stays constant, calculate Sid's acceleration while he is running on the rough ground. e) How far does he travel before coming to rest? ut = vitat 7x+ 2) A block of wood with a mass of 1.5 kg falls off the back of a truck that is traveling at a speed of 18 m/s. The coefficient of friction between the block and the concrete is 0.6. It lands on the concrete and slides a distance of 20.66 m before reaching a dirt field. a. What is the initial velocity of the block in the horizontal direction when it hits the ground? b. What is the acceleration of the block while it slides on the ground? c. What is the final velocity of the block when it reaches the dirt field? 3 When the block reaches the dirt field, it continues to slide, but it travels a distance of 10 m before coming to rest. d. What is the block's initial velocity when it starts sliding across the dirt field? e. What is the block's acceleration while sliding on the dirt field? f. What is the force acting on the wooden block while sliding on the dirt field? g. What is the coefficient of friction between the wooden block and the dirt field? m= az? 8.3
Calculate the initial velocity of a ball thrown vertically into the air reaching a maximum height of 20 m. (Don't forget: at maximum height the final velocity is zero and the acceleration is -10 m/s²)
A driver spotted a police car and he braked from a speed of 100km/h to a speed of 80km/h during a displacement of 88m, at a constant acceleration (a) What is that acceleration. (b) How much time is required for the given decrease in speed
A rocket is burning fuel at the rate of 300g/s and electing all the gas. In one direction of the rate of 500m/s what is maximum weight the rocket burn have if it going to move Vertically upward.
The figure shows an overhead view of a 1.40 kg plastic rod of length 1.20 m on a table. One end of the rod is attached to the table, and the rod is free to pivot about this point without friction. A disk of mass 38.0 g slides toward the opposite end of the rod with an initial velocity of 35.5 m/s. The disk strikes the rod and sticks to it. After the collision, the rod rotates about the pivot point. A thin vertical rod has a point labeled pivot at its bottom, and a disk moving horizontally along an arrow labeled vector v that will reach the rod perpendicularly at the top. (a) What is the angular velocity, in rad/s, of the two after the collision?
A weightless spring of force constant 2.50 N/cm is 15.0 cm long when nothing is attached to it. It is now used to pull horizontally on a 12.5 kg box on a smooth horizontal floor. You observe that the box starts from rest and moves 96.0 cm during the first 1.60 s of its motion. How long is the spring during this motion?
A stunt woman of mass mmm falls into a net during the filming of an action movie. She experiences a normal force magnitude {F_n}F n F, start subscript, n, end subscript while touching the net. Which of the following statements is correct for the acceleration magnitude {a}aa of the stunt woman? Consider upward as the positive direction.
A person rides in an elevator. What is the equal and opposite force for the force of the elevator floor pushing up on the person as described by Newton's third law?
A body of mass 2kg falls freely from rest through a height 8m onto a hard floor bounces back to a height of 2m. calculate the change of momentum, if the bady is in contact with the floor for 0.1s, what is the force exerted on the body? (g=10ms^2)
A 3000 W oven is cooking your Sunday roast for 1 hour and 35 minutes. How much did it cost to cook it?
A Car Starts from rest and accelerate at the rate of 5m/s' for 8 See It then travels at this speed for another lasse fer which it was brought to rest in 4sec: The maximum velocity attained by the car the time taken to cover the first 18seconds Calculate the average speed of the Car
