Highway safety engineers want to design roadside barriers that will crumple in the event that a car drives off the road and collides with them, slowing down the car more gradually. The average person has a mass of 68 kg and travels on a highway at a velocity of 27 m/s. If the engineers know that the maximum force that a person can safely withstand is 1180 N, approximately how much time is required to crumple the barrier to safely slow the person with this force?

Q: Yesterday, I was roller skating. I was moving with a speed of 5.0 m/s on a road. My mass in total is…

A: Magnitude of the Force

Q: Brooklyn is preparing for the upcoming rugby season. To develop some strength and power, she is…

A:

Q: ng on the 2.0 kg block. ce F. by the 5.0 kg block on the 2.0 kg block.

A:

Q: Yesterday I went on a sled. I was sliding with a speed of 3.0 m/s across a pond covered with ice. My…

A:

Q: Your mass is 77.3 kg, and the sled s mass is 18.9 kg. The sled is moving by itself on the ice at…

A: Given : m1 = 77.3 kg m2 = 18.9 kg v2 = 3.73 m/s

Q: A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his…

A: Given:Initial speed of the ball, u = 0 m/sFinal speed of the ball, v = 15 m/sTime of contact, t =…

Q: A 2550 kg car traveling to the north is slowed down from an initial velocity of 19.5 m/s by a 5750 N…

A: Using newtons second law  Fnet=ma  And using first equation of motion  V=u+at

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: Your mass is 86.8 kg, and the sled s mass is 17.2 kg. The sled is moving by itself on the ice at…

A:

Q: What is the magnitude of the average force, in newtons on a 0.022 kg bullet to accelerate it to…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: You’re in a rocket that’s accelerating through intergalactic space at 5.82 m/s2.  Your mass is 80.0…

A: GIVEN             Mass , m = 80.0 kg            Acceleration , a = 5.82 m/s2           Weight , W =…

Q: A squid is able to use a type of jet propulsion to accelerate away from predators by ejecting water…

A: Velocity, v = 8 m/sTime, t = 0.35 sThrust force, T = 30 NMass of the squid, ∆m = ?

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

A:

Q: A person in a kayak starts paddling, and it accelerates from 0 to 0.621 m/s in a distance of 0.433…

A:

Q: Brooklyn is preparing for the upcoming rugby season. To develop some strength and power, she is…

A:

Q: Blocks with masses of 3.0kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All…

A: Given: The mass of the first block is m1=3 kg. The mass of the second block is m2=4 kg. The mass of…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given data:  Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 45.3 m/s Time interval (Δt) = 6.11…

Q: A cyclist is coasting at 18 m/s when she starts on a 450 m long slope that is 40 m high. The cyclist…

A:

Q: school physics. Formula: 1/2 mv2 + Fd cos theta = 1/2      A 1600 kg car is moving along a level…

A: Given  Mass m = 1600 kg  Initial velocity u = 35 m /s distance travelled s = 60 m  Force F = -800 N

Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…

A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…

Q: The coefficient of friction between the wheels of Yamaha motorcycle and the dry pavement is 0.79. An…

A:

Q: A 60 kg object traveling at a speed of 80 m/s is suddenly brought to rest in a time of 0.4 seconds.…

A:

Q: the normal force that you experience

A: Given: Initially elevator is at rest. Velocity of elevator in downward direction is vt=-2t2 j^ m/s…

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 net force is applied in the positive directions to an object moving in one dimension. The graph of…

A:

Q: A frog with some sort of little monster on his back is swimming in a bathtub of split tomato soup.…

A: Given, The mass of the frog m1=0.0280 kg The mass of the monster: m2 = 0.0300 kg The force applied…

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: