A 0.29 kg puck is initially stationary on an ice surface with negligible friction. At time t = 0, a horizontal force begins to move the puck. The force is given by  ?→=(17.0−3.41?^2), with in newtons and t in seconds, and it acts until its magnitude is zero. (a) What is the magnitude of the impulse on the puck from the force between t = 0.564 s and t = 1.05 s? (b) What is the change in momentum of the puck between t = 0 and the instant at which F = 0

A person is pushing a 8 kg block along a horiontal surface at a constant speed of 15.4 m/s. The person is applying a force of 8.9 N to the block at an angle of 36.7° above horizontal. If the block moves a distance of 3.55 m, what is the magnitude of the impulse parted upon the block by the force of gravity?

A pitcher throws a 0.200 kg ball so that its speed is 11.0 m/s and angle is 35.0° below the horizontal when a player bats the ball directly toward the pitcher with velocity 42.0 m/s at 30.0° above the horizontal. Assume +î to be along the line from the batter to the pitcher and +ĵ to be the upward vertical direction. (Express your answers in vector form.) (a) Determine the impulse (in N s) delivered to the ball. I = (b) If the force on the ball increases linearly for 4.00 ms, holds constant for 20.0 ms, and then decreases linearly to zero in another 4.00 ms, what is the maximum force (in N) on the ball? max N.S = N

The magnitude of the net force exerted in the x direction on a 2.15-kg particle varies in time as shown in the figure below. F (N) 4 3 2 1 t(s) (a) Find the impulse of the force over the 5.00-s time interval. Ỉ = N.S 1 2 3 4 5 (b) Find the final velocity the particle attains if it is originally at rest. ✔f m/s (c) Find its final velocity if its original velocity is -3.50 î m/s. √ ₁ = m/s avg (d) Find the average force exerted on the particle for the time interval between 0 and 5.00 s. F N =

The magnitude of the net force exerted in the x direction on a 3.40-kg particle varies in time as shown in the figure below. F (N) 4 3 1 t(s) 4 5 1 3 (a) Find the impulse of the force over the 5.00-s time interval. × N·s (b) Find the final velocity the particle attains if it is originally at rest. m/s %3D if = (c) Find its final velocity if its original velocity is -2.60 î m/s. m/s %3D if = (d) Find the average force exerted on the particle for the time interval between 0 and 5.00 s. Favg =

Two students are playing paddle ball with a 5 kg spongy ball. If the ball is thrown at the batter with a speed of 5 m/s and bounces off with a speed of 10 m/s. What is the magnitude of the impulse imparted on the ball by the bat?

A particle with a mass of 2.45 kg is acted on by a force F acting in the x-direction. If the magnitude of the force varies in time as shown in the figure below, determine the following. Fx (N) 8 6 4 t (s) 1 3 4 (a) impulse of the force (in kg · m/s ) kg · m/s (b) final velocity of the particle (in m/s) if it is initially at rest m/s (c) Find the final velocity of the particle (in m/s) if it is initially moving along the x-axis with a velocity of -1.60 m/s. m/s

A 1300 kg car moving at 6.3 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 3.6 s, the inattentive operator drives into a tree, which stops the car in 290 ms. What is the magnitude of the impulse on the car (a) due to the turn and (b) due to the collision? What is the magnitude of the average force that acts on the car (c) during the turn and (d) during the collision? (e) What is the angle between the average force in (c) and the positive x direction? (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units (e) Number i Units MacBook Pro esc > @ $ & 1 2 3 4 Q W E R Y tab S F K caps lock C V M hift fn control option command

The magnitude of the net force exerted in the x direction on a 2.10-kg particle varies in time as shown in the figure below. F (N) 4 3 2 1 1 2 3 4 (a) Find the impulse of the force over the 5.00-s time interval. I = 12 X N.s t (s) (b) Find the final velocity the particle attains if it is originally at rest. √₁² 3.076 = avg = (c) Find its final velocity if its original velocity is -2.30 î m/s. 7₁ -0.024 = X m/s (d) Find the average force exerted on the particle for the time interval between 0 and 5.00 s. F 2.4 X m/s XN

At the circus, one of the acrobats does a belly-flop from 12.0 m into 30 cm of water. If the mass of the acrobat is 60 kg and assuming he stops just at the bottom of the water, what is the magnitude of the impulse from the water on the acrobat?