Impulse = change in momentum force * time {J= m(v-vo); J= Ft = m(v-vo)} 1. A 1500 kg car accelerates from 13 m/s to 18 m/s. Find the change in momentum of the car. 2. A 0.07 kg tennis ball, initially at rest, leaves a racket with a speed of 56 m/s. If the ball is in contact with the racket for 0.04 s, what is the average force on the ball by the racket? 3. A 0.145 kg baseball reaches a speed of 36 m/s from rest when a bat strikes. If the average force of 500 N was applied on the ball by the bat, what is the impact time?

Q: 65. A varsity soccer player kicks a soccer ball approximately straight upward with an initial…

A: a) Given that, s=-12gt2+v0t+s0         ...(1) g=32 ft/sec2v0=60 ft/secs0=2 ft Substitute the value…

Q: Two cars leave the same point and travel on roads that are at right angles to each other. If the…

A: Let the distance travelled in 36 minutes by the first car A travelling at 45km/h is x and distance…

Q: A rugby player with a mass of 126 kg and a velocity of 5.5 m s-1 tackles an opposition player who…

A: The velocity of the player with the ball after tackling is 6.882 m/s backwards.Explanation:Step…

Q: Suppose an object is moving along a line such that the acceleration after t seconds is 6t -8t…

A:

Q: The table shows the position of a cyclist. t (seconds) 0 1 2 3 4 5 s (meters) 0 1.3 4.5 10.3 17.5…

A: The objective of the question is to calculate the average velocity of the cyclist for different time…

Q: A stone tossed vertically into the air with initial velocity v cm/s reaches a maximum height of h =…

A:

Q: The particles position along a rectilinear path with an acceleration given by the equation below…

A: Given that, x=53y13+y52 We have to find x when y=6.562.

Q: 5. A ladder of length 4v3 metres is resting on a wall. The wall makes a 60-degree angle with the…

A:

Q: A car of mass m moving at a speed v₁ collides and couples with the back of a truck of mass 2m moving…

A:

Q: Find the amount of a 6% acid solution and the amount of a 14% acid solution Pat Mayfield should…

A:

Q: Number 6

A: 6The velocity of a car is given by : v(t)=t2+2t here, v(t) is measured in ft/sec and t is measured…

Q: The table shows the position of a motorcyclist after accelerating from rest. t (seconds) s (feet) 0…

A: Introduction: In contrast to instantaneous velocity, which is determined by the slope of the tangent…

Q: A projectile is launched in the air from the ground with an initial velocity v0=63 m/s. What the…

A:

Q: A baseball player stands 5 meters from home plate and watches a pitch fly by. In the diagram, x is…

A: