The force shown in the force vs. time diagram in the figure below acts on a 1.8-kg object. F (N) 1 t (s) 1 2 3 4 (a) Find the impulse of the force. (b) Find the final velocity of the object if it is initially at rest. m/s (c) Find the final velocity of the object if it is initially moving along the x-axis with a velocity of -1.5 m/s. m/s

A hockey puck with mass 0.150 kg is sitting at rest on frictionless ice when it is struck with a hockey stick. The puck then slides forward with a speed of 30.3 m/s. The hockey stick was in contact with the ball for 9.50 x 10 seconds. What was the impulse imparted to the hockey puck by the hockey stick? A 2.02 kgm/s B) 0.00495 kgm/s C) 4.54 kgm/s श्व 0 kgm/s

A particle with a mass of 1.90 kg is acted on by a force Fx acting in the x-direction. If the magnitude of the force varies in time as shown in the figure below, determine the following. (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  −25.00 m/s.  m/s

Imagine a collision between two balls: ball A has an initial momentum p of 2 kg-m/s to the right, and ball B is stationary before the collision. B has a mass of 1 kg. After the collision, the velocity of A is 2 m/s to the left and that of B is 3 m/s to the right. What are the mass and initial velocity of ball A? a) The mass of ball A is 5 kg, and its velocity 2 m/s. b) The mass of ball A is 1 kg, and its velocity 3 m/s. c) The mass of ball A is 2 kg, and its velocity 4 m/s. d) The mass of ball A is 0.5 kg, and its velocity 4 m/s.

15 kg horizontally toward the right with a speed of v 4.7 m/s as in the figure below. Neglecting A 79-kg fisherman in a 135-kg boat throws a package of mass m = water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown m/s magnitude direction --Select--- m

A model rocket is constructed with a motor that can provide a total impulse of 26.0 N-s. The mass of the rocket is 0.117 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance. Number i Units

If the impulse acting on a moving 100 kg object is zero, what does that mean about the velocity of the object? Recall that impulse is: F*t = m*Δv where Δv = vf - vi     vf > vi     vf = vi     vf < vi     Not enough information to determine.

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 =

A hockey player passes a puck that is initially at rest. The force exerted by the tick on the puck is 1098 N [forward) and the stick is in contact with the puck for 4.8 ms. a) Determine the impulse imparted by the stick to puck. b) If the puck has a mass of 0.14 kg, calculate the speed of the puck just after it leaves the hockey stick

Look at the picture