A 57.0 kg person is riding in a car moving at 19.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) (a) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) N (b) Calculate the average force (in N) on the person if he is stopped by an air bag that compresses an average of 15.0 cm. (Indicate the direction with the sign of your answer.) N

Q: A 46.9-kg skater is standing at rest in front of a wall. By pushing against the wall, she propels…

A: See below

Q: The 1-kg ball is thrown at the suspended 26-kg block with a velocity of 9 m/s. If the time of impact…

A:

Q: iar A was travelling east at a speed of 15 m/s and car 8 was travelling north at an unknown speed…

A:

Q: A 79.5kg person, running horizontally with a velocity of +2.34m/s,jumps onto a 11.8kg sled that is…

A: Given, Mass of person (mp ) = 79.5 kg  Mass of sled (ms) = 11.8kg  Initial velocity of person (up)=…

Q: A 0.350 kg hammer is moving horizontally at 4.00 m/s when it strikes a nail and comes to rest after…

A: Given :    mass of hammer, m = 0.350 kg    Initial velocity, u = 4.00 m/s    Final velocity, v = 0…

Q: 10.0-kg projectile launched with an initial speed of 10.0 m/s , at an elevation angle of 35.0°. The…

A: Given: The mass of the projectile (m) = 10 kg The initial speed of the projectile (v)= 10 m/s The…

Q: At time t = 0 a 2150-kg rocket in outer space fires an engine that exerts an increasing force on it…

A:

Q: A new Dutchman Day activity allows people to leap from the top of the Humanities building onto a…

A:

Q: A 54.0 kg person is riding in a car moving at 21.0 m/s when the car runs into a bridge abutment.…

A: Given data:  Mass of person (m) = 54.0 kg Initial velocity (Vi) = 21.0 m/s Final velocity (Vf) = 0…

Q: Z Your answer is partially correct. Try again. The velocity of a 2 kg particle is given by V = (2t i…

A:

Q: Consider a uniform square plate of thickness t, with the dimension given in figure 6. Find the…

A: Since you have asked for the solution of part B, we have solved that only.

Q: The front 1.20 m of a 1,350-kg car is designed as a "crumple zone" that collapses to absorb the…

A: The objective of the question is to find the time of collision, the average force on the car, and…

Q: Two blocks A and B of the same mass 1.16 kg are released from rest on a 29° incline when they are S…

A: The free body diagram for block A is given below.

Q: The rocket sled shown in the figure decelerates at a rate of 155 m/s2 . Its passenger has a mass of…

A: Given : a = -155 m/s2 (negative because the rocket decelerates) m = 75 kg

Q: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun…

A: Given data:  Mass of bullet (m) = 0.0200 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 550…

Q: A 53.8-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A:

Q: The high-speed winds around a tornado can drive projectiles into trees, building walls, and even…

A: Given:  m = 0.13 g = 0.13 x 10-3 kg u = 220 m/s  v = 0 m/s  d = 15 mm = 0.015 m

Q: Paolo "The Soundwave" is an amateur street luger. His mass is 85 kg, and his second-hand luge racer…

A: Given, Total mass, m=85+11=96 kg Initial velocity, u=15 m/s Time for stopping, t=7.2 s

Q: While playing basketball in PE class, a student lost her balance after making a lay-up and collided…

A:

Q: To help reduce severity of accidents, an engineering company designs large plastic barrels filled…

A: The 1200 kg car is initially travelling at 20 m/s, before it crashes into the barrels. As soon as…

Q: In a study conducted by an Acadia Athletic Therapy researcher, the football team was equipped for an…

A:

Q: A 47.7-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: Given: The mass of the skater is 47.7 kg. The initial velocity of the skater is 0 m/s. The final…

Q: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun…

A:

Q: In the expression of Newton's second law for a system of constant mass, EF = mā: The vector…

A: The Force F=ma from Newton's second law when applied to an object, it predicts the motion of a…

Q: Q. 4. As shown in the figure, 2 blocks of different mass are connect by a string that passes over…

A:

Q: A 54.1-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A:

Q: Blocks A and B of mass 14 kg and 8 kg respectively, are placed on the inclined plane and released.…

A: Given  Mass of A, M = 14 kg  Mass of B, m = 8 kg   Coefficient of kinetic friction between block A…

Q: Cray-Zee is speeding along at 29.1 m/s as she approaches the level section of track near the loading…

A: Given Data: Initial velocity, u=29.1 m/s Final velocity, v=3.2 m/s Distance traveled, s=5.49 m The…

Q: A 15 kg block is on a 25kg block, and the 25 kg block is on a frictionless table. The coefficient of…

A:

Q: A 54.1-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A:

Q: A 4.0-g bullet leaves the muzzle of a rifle with a speed of 340 m/s. What force (assumed constant)…

A: Force acting on bullet is as follows; F=ma…

Q: After falling from rest from a height of 27 m, a 0.40-kg ball rebounds upward, reaching a height of…

A: Using the equation of motion, the velocity of the ball when it hits the ground can be obtained as…

Q: A woman of mass m = 41 kg travels at a velocity vi = 1.5 m/s before leaping on a skateboard that is…

A: We can start by applying the principle of conservation of momentum, which states that the total…

Q: A 63.0 kgkg parachutist falling vertically at a speed of 6.50 m/sm/s hits the ground, which brings…

A: Write the given values to the specified variables.Here, m, u, v,  are the mass, initial speed, final…

Q: ni/h) by the pitcher. If the mass of the ball is 0.15 kg and if the catche noves his mitt backward…

A: The average force is the force exerted by some object moving at some defined rate of speed i.e.…

Q: A 43.3-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A:

Q: You are the design engineer in charge of the crashworthiness of new automobile models. Cars are…

A:

Q: Q.5. In figure (6), body A weighs 200N and body B weighs 400N. The coefficient of friction for all…

A: Given, Weight of body A= 200 N Weight of body B= 400 N Friction coefficient= 0.4 Free body diagram…

Q: A 40.4-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A:

Q: A car moving at 30 m/s crashes into a tree and stops in 0.3 s. Calculate the force the seat belt…

A:

Q: A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs into a bridge abutment (see…

A: If a person is stopped by a padded dashboard that compresses on average by 1 cm, we need to…

Q: A block of mass m is being pulled by the string as shown below. The string has a tension T and makes…

A: The mass of the block is The tension in the string is The angle of the tension to the horizontal is…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: