A car is 200. m from a stop sign and traveling toward the sign at 40.0 m/s. If the driver realizes they must stop the car at this time. It takes 0.200 s for the driver to apply the brakes. What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign?

Q: A cop car, at a constant speed of 110 km/h, is overtaken by a race car. Precisely 1.2 s after the…

A: Given data The constant speed of the cop car is u = 110 km/h. The time duration when it passes is…

Q: Different animals have very different capacities for running. A horse can maintain a top speed of 20…

A:

Q: A student is running at her top speed of 5.00 m/s to catch a bus, which is stopped at the bus stop.…

A:

Q: You are trying to get to class on time using the Shuttle. You are later than usual getting to the…

A: The time to run is,

Q: You are stopped at a red light along a long, straight road. At the moment the light turns green, a…

A: Equate the distance travelled by the truck and car

Q: The school zone in front of your school has a posted speed limit of 25 mi/h, which is about 11 m/s.…

A:

Q: A car travels at 30.0 m/s and sees a truck 100.0 m ahead of it that is traveling at 20.0 m/s. The…

A:

Q: I am driving at 35 mph on a foggy day when I see a car 5 miles ahead of me stopped in the road with…

A: Given  Maxximum decelaration of car is 12 mph/s = 43200 mile/h² Distance of car initialy = 5 miles.…

Q: Figure out the acceleration due to gravity ( g ) on various hypothetical alien planets. On Planet…

A: Given Height of the stone above the ground is h=50.6 m Time taken by the stone to reach the ground…

Q: A cyclist is coasting up a hill. At t=0, the cyclist has a velocity of 14.5 m/s. a) If the…

A: Given data:  Initial velocity (u) = 14.5 m/s Final velocity (v) = 0 m/s Acceleration (a) = -2.5 m/s2…

Q: A speeding car traveling at a constant velocity of 3 × 10'm/s passes a police car initially at rest…

A:

Q: The next few questions challenge you to figure out the acceleration due to gravity ( g ) on various…

A:

Q: A jet plane lands with a speed of 89 m/s and can accelerate at a maximum rate of -4.50 m/s² as it…

A:

Q: An adult on a bicycle approaches a stop sign and applies the brakes to slow to a stop.  If the…

A: Initial speed of bicycle and adult: u = 7.36 m/sDeceleration caused due to brakes: Final speed of an…

Q: Different animals have very different capacities for running. A horse can maintain a top speed of 20…

A:

Q: An express train passes through a station. It enters with an initial velocity of 18.9 m/s and…

A: Given Information:- Initial velocity of the train is vi=18.9 m/s Acceleration of the train is…

Q: A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped…

A: We have,Mass of the rock : m = 15 (kg)Time taken to reach on earth : t = 1.75 (sec)Time taken to…

Q: What is ax(t), the x-component of the acceleration of the car as function of time? What is ay(t),…

A:

Q: You are wearing your rocket pack (m = 73 kg) that accelerates upwards at a constant 10.1 m/s. While…

A: Freefall is defined as the downward movement of the body under gravity.   Acceleration of rocket=…

Q: Imagine that you are inside a spaceship. At t = 0 s, you are at the ground. Then you take off with a…

A: At time t=0 s, the constant upward acceleration is given as, ay=6 m/s2, The time at which jumped out…

Q: A jet plane lands with a speed of 107 m/s and can accelerate at a maximum rate of -5.50 m/s2 as it…

A: Initial speed is Acceleration is Finally the plane comes to rest so final speed is Length of runway…

Q: 6. Scientist are developing new types of guns that might someday be used to launch satellites as if…

A: Using, Newton's equation of motion: v 2 = u2 +2a*S, v= final speed u= initial speed a= acceleration…

Q: which of the following is the best representation of the x-velocity vs. time graph for the cart as

A:

Q: An object moves with constant acceleration 3.75 m/s and over a time interval reaches a final…

A:

Q: Question 9 The child plays a little longer and gives the car a new acceleration with components ar =…

A:

Q: Constant acceleration: A car is 200 m from a stop sign and traveling toward the sign at 40 m/s. At…

A: Answer Given Reaction time = 0.2 s  Now during this reaction time the car is going to travel an…

Q: 5. As I drive on a back-country road, I suddenly see a deer "frozen" in the headlights. I was…

A: Given  Initial speed u=11.4 m/s acceleration a=-3.80m/s2 Distance of deer d=20m

Q: Ian has a reaction time of 0.50 seconds, and the maximum braking capacity of his car allows him to…

A: Let us consider Ian has a reaction time , t=0.50 sec He is driving with a speed of  (v)=20 m/sec…

Q: A student is running at her top speed of5.0 m/s to catch a bus, which is stopped at the bus stop.…

A: Given data: The speed of the student is u=5.0 m/s. The distance of the student is s=40.0 m. The…

Q: jet fighter needs to be at the speed of 170mi/hr. What is the acceleration needed for the jet…

A:

Q: An object is thrown straight up into the air and feels no air resistance. How can the object have an…

A: When an object is thrown straight up then it comes down due to the attraction of Earth. This causes…

Q: A woman backs her van out of her parking space with a constant acceleration of 1.8 m/s2. Assume that…

A:

Q: A car traveling 89 km/h strikes a tree. The front end of the car compresses and the driver comes to…

A:

Q: A flighter jet lands on the flight deck of an aircraft carrier. The jet must reduce its speed from…

A: Given : Initial velocity (vi) = 153 m/s Final velocity (vf) = 0 m/s Time (t) = 2.0 s

Q: What is the y component of the car's acceleration (in m/s^2)?

A: Second kinematic equation in y-direction is given by,                  Y = v0yt + 12ayt2     ----(1)…

Q: A race car is travelling at a speed of 8.00 m/s when the driver steps on the gas pedal. The race car…

A: Given: Speed of car u is 8.0 m/s. Acceleration of the car a is 3.50 m/s2. Time of the travel t is…

Q: A ball is thrown into a wall at a speed of 20 m/s and bounces off going 10 m/s in the opposite…

A: