A car brand wanted to conduct a car crash test for one of their car models to know how well the vehicle's front will protect its occupant in a crash. Suppose the car model has an acceleration of 15m/s? straight into a rigid barrier with a distance of 200m from the barrier. How fast the car will crash on the barrier?

Q: A soda can falls past your balcony at 3 m/s. Your balcony is 9 m off the ground. The soda can…

A: The given data are: u=3 m/sh1=9 mh2=5 m Here, u denotes the initial speed, h1 denotes the initial…

Q: A 2000 kg ball falls from a height of 30 meters. a) How fast it is traveling when it is 7 meters off…

A: A) As per the conservation law of energy, Here, m, g, v, and h represent the ball’s mass, velocity,…

Q: A 4-kg car moving with a speed of 2 m/s starts up a hill. How high does the car roll before it stops…

A: Given: The mass of the car is 4 kg. The velocity of the car is 2 m/s. Introduction: When a body…

Q: 400- 350- €300- 250- 200- 150- 100- 50- 0+ 0 10 20 40 time (seconds) Fig. 9.1 Distance-time graph…

A: distance time graph is given for a cycle ride distance is plotted along y axis and the time is…

Q: What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 s? Explain…

A: Write the expression for acceleration.

Q: A bike starts from rest and reaches a speed of 8 m/s after travelling with uniform acceleration for…

A: Final speed (V) = 8 m/s Initial speed (u) = 4 s

Q: A race car starts from a stop to reach the end of a 1000.0 m road in 12.5 seconds. What is the car's…

A:

Q: A car traveling with an initial velocity of 40 m/s accelerates at 5 m/s2. What is the car’s final…

A:

Q: Q3: A cheetah can accelerate from rest to a speed of 30.0 mis in 7.00 s. What is its its…

A: Given: Initial speed of Cheetah, u = 0 m/s Final speed of Cheetah, v = 30 m/s Time taken, t = 7 s

Q: Katrina drops a 6.00kg rock from the top of a 21.5m cliff 1. After falling for 1.9 seconds, the…

A: Given data: m=6 kgh=21.5 mt=1.9 s Need to determine the speed after 1.9 s and the speed of the rock…

Q: a 1400 kilogram car traveling 15 meters per second brakes uniformly to a stop; it takes 6 seconds to…

A: Given, Mass m =1400 Kg Car traveling with speed u= 15 m/s Time t = 6 s final velocity v = 0 m/s (as…

Q: Jim is trying to improve his speed on the track so he can qualify for the state championship.  As he…

A: The given values are, vi=70 m/min  =70m1 min×60 s1 min  =1.17 m/svf=106m1 min×60 s1 min   =1.77…

Q: An airplane drops a care package in warzone.I want to find out how fast the care package travels…

A:

Q: A bike accelerates from rest, decelerates to a stop. It then returns to its original position in a…

A:

Q: A drunk driver slides off a mountain road and over a cliff 500 m high. How long before the car…

A: Assume the car begins from rest as slides off a mountain road. The time before the car reaches the…

Q: If you could jump with an initial speed at 5 m/a, how many jumps would you need to reach the top of…

A:

Q: An airplane starts from 24.5 m/s and accelerates at 18.3 m/s2. What is its speed at the end of a 518…

A: The given data are: u=24.5 m/sa=18.3 m/s2s=518 m Here, u is the initial speed, a is the…

Q: A car has a constant acceleration as it passes two checkpoints. The time is taken between…

A: Given data The time between the two checkpoints is t=4 s The acceleration of the case is, a=6 m/s2…

Q: a penny was thrown downward off of the top of a 100 m building. The initial velocity of the penny…

A:

Q: S21: A jet lands on an aircraft carrier at a speed of 50 m/s. what is its acceleration if it stops…

A:

Q: car traveling with the initial speed of 30 m/s and traveling a distance 450 m with the final…

A: A car initial speed u = 30 m/s  The final speed of the car is v = 80 m/s  The distance travel by the…

Q: A maglev train accelerates at a rate of 4 km/hr/s. Accelerating from rest it can reach its top speed…

A: Given Acceleration of the train is a=4 km/hr/s=4×10003600 m/s2=109 m/s Initial speed of the train is…

Q: A car starts from rest and reaches a velocity of 36.0 m/s in 5.0 seconds. What is its acceleration?…

A:

Q: A 30 m high roller coaster has an initial velocity of 5 m/s. How fast is it going when it reaches a…

A: Given data *The height of the roller coaster is h1 = 30 m *The initial velocity of the roller…

Q: A sled slides off the ice at a speed of 4.1 m/s. The sled slows down at a rate of 2.9 m/s². How fast…

A: sled slides off the ice at a speed(initial), u= 4.1 m/s De acceleration=-2.9 m/s2 Distance, S=1.2m

Q: A rock of mass 1.0 kg is dropped from a height of 10 m. What will be its velocity just before it…

A:

Q: A new prototype car is first test driven at 75 m/s for 9 seconds and then it is immediately slowed…

A: Given:

Q: John can fly his airplane 2140 miles with a wind speed of 25 mph in the same time he can travel 1940…

A:

Q: A car moving at 25m/s makes a head-on collision with an identical car that is at rest. They combine…

A:

Q: A car travels 52 mph for 6 minutes, 46 mph for 3 minutes, 40 mph for 15 minutes and 44 mph for the…

A:

Q: A maglev train accelerates at a rate of 5 km/hr/s. Accelerating from rest it can reach its top speed…

A:

Q: displacement

A: Given: The runner starts running from her house and ends up back at her house. The total distance…

Q: If a race car at rest (not moving) accelerates to a speed of 120 m/s in 32 s. What is the car's…

A:

Q: What is the speed of a runner who goes around the entire oval of the track a distance of 400 meters…

A: The speed of the runner is, v=dt

Q: A car starts from rest and accelerates at 2.1 m/s2 until it reaches a speed of 20 m/s.  The car then…

A: The time of travel during the acceleration of 2.1m/s2 can be obtained as…

Q: A skater increases her velocity from 4.3 m/s to 11.5 m/s in 5 seconds. What is the skater's…

A:

Q: A motorcycle rider speeds off a 20-meter-high cliff. How fast must the driver leave the cliff to…

A: Given data: Height of the cliff y =- 20.0 m Height of the cliff from the ground x =100 m

Q: A racecar driver steps on the gas, changing his speed from 10 m/s to 36 m/s in 2.4 seconds. The…

A:

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.