A child is sliding on a sled at 1.5 m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and sled is 35 kg, what average force do you need to apply to stop the sled? Use the concepts of impulse and momentum.

Q: A tennis ball with a mass of 0.025 kg is moving from left to right and 2.5 m/s. It is hit by a…

A: Given data:  Mass (m) = 0.025 kg Initial velocity (Vi) = +2.5 m/s Time interval (Δt) = 0.005 s Final…

Q: A professional golfer is examining a video of a practice swing. The high‑speed footage shows that…

A: the magnitude of the impulse imparted to the ball by the club is I=Δp=mvf-vi=0.0459 kg176…

Q: A baseball of mass m = 0.26 kg is dropped from a height h1 = 2.05 m. It bounces from the concrete…

A: V1= 2gh1= 2×9.81×2.05= 6.342 m/sV2= 2gh2= 2×9.81×1.63 = 5.655 m/s

Q: A 2 kg particle is moving horizontally with a speed of 4 m/s when it strikes a vertical wall. The…

A: Given: The mass of the particle is 2 kg. The initial velocity of the ball is 4 m/s. The final…

Q: A particle is moving along the x axis, and the graph shows its momentum p as a function of time t.…

A: Force is given as the rate of change of momentum with time. So, the slope of the graph represents…

Q: A person kicks a soccer ball of mass m. The ball is initially stationary and then leaves the foot of…

A: (a) The ball’s initial speed is, The impulse imparted on a soccer ball will be equal to the change…

Q: A 1500kg car starting from rest, reaches a velocity of 41km/h. If the car is moving in the east…

A: Given that Mass of the car m=1500 Kg  Initial velocity of the car u=0   final velocity of the car…

Q: A particle is moving along the x axis, and the graph shows its momentum p as a function of time t.…

A: Impulse of an object is defined where a large amount of force acts on a short duration of time. eg.…

Q: n tae-kwon-do, a hand is slammed down onto a target at a speed of 11 m/s and comes to a stop during…

A:

Q: F (N) 100 50 Average Force t (s) 0.15 0.30

A:

Q: A player bounces a 0.44-kg soccer ball off her head, changing the velocity of the ball from vi =…

A: Given, mass of soccer ball , m = 0.44 kg  initial velocity,vi = 8.3m/sx^+(-2.3m/s)y^final…

Q: The force shown in the force vs. time diagram in Figure P6.15 acts on a 1.5-kg object. Find (a) the…

A:

Q: A 1.8 kg ball drops vertically onto a floor, hitting with a speed of 34 m/s. It rebounds with an…

A: Mass of the ball m=1.8 kg, initial velocity of the ball u=34 m/s, velocity of the ball after…

Q: What was the object's initial velocity in the x direction ?  ___________m/s What was the object's…

A: Given: Mass of an object, m=6.1Kg Momentum, p=104 Kg m/s Impulse, I=-92Kgm/s

Q: A 1.2 kg baseball moving westward at 12 m/s is hit by a bat that delivers an eastward impulse of 30…

A: mass = 1.2 kg initial speed = 12 m/s (westwards) Impulse = - 30 kg m/s (because the direction of…

Q: A 2.4 kg ball placed on the floor is being hit by an object that exerts a force on the ball…

A:

Q: A 5.0-oz baseball arrives at the bat with a speed of 160 ft/s. It remains in contact with the bat…

A:

Q: (a) Rank these automobiles based on the magnitude of the impulse needed to stop them, from largest…

A:

Q: In tae-kwon-do, a hand is slammed down onto a target at a speed of 11 m/s and comes to a stop during…

A: Average force= Impulse divided by time. We got impulse = 8.8 Given time =6ms

Q: A ball traveling with an initial momentum of 2.5 kg · m/s bounces off a wall and comes back in the…

A: Given Data : The initial momentum of the ball is given as Pi=2.5 Kg.ms. The initial momentum of the…

Q: 3. Below is a force-time graph showing a curve for a baseball struck by a bat. Using the curve,…

A:

Q: A small ball of mass m7=0.36kg and initial speed v;=12m/s makes a collision with another ball of…

A: Given. M1 = 0.36 kg M2 = 1.33 kg V1 = 12m/s V2 = 0 Angle a = 49° Concept - law of conservation of…

Q: A 1.8 kg ball drops vertically onto a floor, hitting with a speed of 34 m/s. It rebounds with an…

A: Given, mass of the ball, m = 1.8 kg speed of the ball, v = 34 ms final speed, vf = 12 ms

Q: In the figure below, a 0.40 kg ball with a speed v of 5.0 m/s strikes a wall at an angle 0 of 30°…

A:

Q: A 0.10-kilogram model rocket's engine is designed to deliver an impulse of 9.0 newton-seconds. If…

A: Here given a 0.10-kilogram model rocket's engine is designed todeliver an impulse of 9.0 N.s. The…

Q: In the overhead view of the figure, a 460 g ball with a speed v of 4.5 m/s strikes a wall at an…

A: Find the impulse acting on the ball and average force exerted on the ball.

Q: A 7.3 kg object initially has a momentum of 85 kgm/s. The object then experiences an impulse of -94…

A: a)We know that momentum P=Mv 85=7.3vi vi=11.64m/s

Q: A golf ball of mass 0.045 kgkg is hit off the tee at a speed of 32 m/sm/s . The golf club was in…

A:

Q: A 4.9 kg object initially has a momentum of 208 kgm/s. The object then experiences an impulse of…

A:

Q: A 5.0-oz baseball arrives at the bat with a speed of 160 ft/s. It remains in contact with the bat…

A: Given data: Mass of baseball is, m=5 oz=5 oz×0.030 kg1 oz=0.15 kg. Speed of approach towards bat is,…

Q: A 0.500-kg football is thrown toward the east with a speed of 15.0 m/s. A stationary receiver…

A: Given: The mass of the football is m=0.5 kg. The speed is v=15 m/s. The time is t= 0.02 s. Part…

Q: In a dance jump, the dancer lifts their center of mass 40 cm.  When they land, they bend their knees…

A:

Q: "A 1-kg car travelling at 30 m/s decelerates coming to stop in 5 seconds, as a result of applying…

A: Given data The mass of the car is m = 1 kg. The initial velocity of the car is u = 30 m/s. The…

Q: Four billiards balls, each of mass 0.5 kg, all are travelling in the same direction on a billiard…

A: The linear momentum of a system is simply the sum of the linear momentum of the constituent parts.…

Q: A golf ball of mass 0.045 kg is hit off the tee at a speed of 34 m/s. The golf club was in contact…

A: Given,

Q: 2. A 36.5kg dog runs across a field at 11.2m/s[North] on a very dark night. The poor dog could not…

A: mass of dog (m) = 36.5 kg Initial velocity (u) = 11.2 m/s due North Final velocity (v) = 4 m/s due…

Q: A professional golfer is examining a video of a practice swing. The high‑speed footage shows that…

A: Given that:- Mass of ball=m=45.9 gm

Q: 35.0-kg object is moving eastward at 26.8 m/s. The object encounters an eastward impulse of 130.0…

A: Given  m= 35 kg.         V =  26 .8 m/s & Impulse given ( I )  = 130 Ns momentum (P) = mv We…

Q: An estimated force vs. time curve for a baseball struck by a bat is shown in the figure below. (a)…

A:

Q: A 46-kg skater is standing still in front of a wall. By pushing against the wall, she propels…

A: Option C is the right answer  69N

Q: A 500 g object moving with an initial speed of 1.6 m/s to the left, experiences a force varying with…

A: Given:mass, m = 500 g = 0.5 kginitial speed, u = 1.6 m/stime, t = 10-3 s

Q: A cheering squad is made up of four members: Ping of 75kg moving 3.0 m/s, North; Manny of mass 70kg…

A: