car travels on a straight, level road. (a) Starting from rest, the car is going 54 ft/s (37 mi/h) at the end of 4.0 s. What is the car's average acceleration in ft/s2? magnitude      13.5 ft/s2     (b) In 3.0 more seconds, the car is going 108 ft/s (74 mi/h). What is the car's average acceleration for this time period? magnitude     18  ft/s2     (c) The car then slows to 81 ft/s (55 mi/h) in 2.0 s. What is the average acceleration for this time period? magnitude       ????? ft/s2

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 192 m/s to the west.…

A: Apply the first kinematic equation. Here, v represents the final velocity, u represents the initial…

Q: A truck covers 43.0 m in 8.40 s while smoothly slowing down to final speed of 2.10 m/s. (a) Find its…

A:

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 254 m/s to the east.…

A: Initial velocity is  towards east.Time is Finally, the object comes to a stop, the final velocity is…

Q: student holds a ball 1.55 meters above the ground and drops it. Her friend uses a stopwatch and…

A:

Q: My question isn't how to solve the problem exactly.  In fact, it's already been solved on this…

A: Basic concept of velocity and acceleration: Velocity of an object is defined as product of distance…

Q: A ball is thrown straight down with an initial speed of 2.3 m/s from a height of 5.0 m. What is the…

A:

Q: a) What is the acceleration during the first 4 seconds of motion. ( include sign ) b) What is the…

A: NOTE: According to the guidelines we are allowed to answer only the first 3 subparts. If you want to…

Q: S roller coaster rapidly picks up speed as it roles down a slope. As it startx down the slope the…

A:

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 203 m/s to the east.…

A:

Q: 6. A graph of v(t) is shown for a lion in the figure. (a) What is the lion's average velocity for…

A: Average velocity = area under the curve from t =0 to t=4 sec..Average velocity = .

Q: An object is moving in the air (defying gravity) so that its height after t seconds is given by…

A:

Q: In m/s?, what is the acceleration when t = 7.5 sec? Express your answer as an integer, not as a…

A: The acceleration at a time in velocity-time graph represents the at that time.

Q: An acceleration of 90.0 m/s^2 was experienced by a rocket which was launched upward. The…

A: Given that, The acceleration of 90.0 m/s2 was experienced by a rocket that was launched upward.  The…

Q: A runner is moving with a speed of 2.68[m/s]. How long will it take the runner to complete a 5.0[km]…

A: The expression for find time taken by the runner to complete the race is t=dv

Q: A car is traveling at 40 mph on a straight road. The driver applies the brakes for 3 sec, producing…

A: initial velocity u= 40mph =17.88m/s duration of brake applied t = 3sec deceleration a = -5.5ft/sec2=…

Q: A race car traveling northward on a straight, level track at a constant speed travels 0.751 km in…

A: Average velocity is equals to total displacement divided by total time taken.Vavg = (dtot)/(ttot)If…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 212 m/s to the west.…

A:

Q: A swan on a lake gets airborne by flapping its wings and running on top of the water. a) If the swan…

A: Data we have velocity, v=6.96m/s acceleration, a=0.4m/s2 To find the distance, d=?

Q: A motorist drives north for 41.0 minutes at 67.0 km/h and then stops for 15.0 minutes. He then…

A: @ first 41 minutes, t1= 41min = 41/60 hours = 0.683333333 hours v1= 67 km/hr Therefore,…

Q: A VW Beetle goes from 0 to 58.0 mi/h with an acceleration of +2.35m/s^2. How much time does it take…

A:

Q: A driver traveling north slows down from 31.9 m/s to 0 m/s in 6.5 seconds. What is the magnitude of…

A: Given that, Initial velocity (u) = 31.9 m/s  Final velocity (v) = 0 m/s  Time (t) = 6.5 seconds  We…

Q: 2. A car is driven 1200 m north at 20.0 m/s and then driven 1600 m east at 25.0 m/s. What is the…

A: North:Distance Xn= 1200m Speed Vn= 20 m/sEast:Distance Xe= 1600mSpeed Ve= 25m/s

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 258 m/s to the east.…

A: The equation for the average acceleration is given by aavg=vf-viΔt Here, vf is the final velocity,…

Q: A race car traveling northward on a straight, level track at a constant speed travels 0.751 km in…

A: The objective of the question is to find the average velocity of the car for the first leg of the…

Q: A car travels along a 1000 m path, starting from rest. For the first 300 m, it accelerates at 2.00…

A:

Q: A motorcycle has a constant acceleration of 4.05 m/s2. Both the velocity and acceleration of the…

A:

Q: While driving south on hwy 400, Jim gets stuck travelling at 1.9 m/s behind a slow truck. He finally…

A:

Q: A stone is thrown downward with a speed of 20 m/s from a height of 15 m. (acceleration due to…

A: Given value--- initial speed = 20 m/s. height = 15 m. acceleration due to gravity = 10 m/s2.  We…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 230 m/s to the west.…

A: The average acceleration is given as a=(v-u)/t where v is the final velocity and u is the initial…

Q: During 9.99 s, a motorcyclist changes his velocity from 1x = -35.3 m/s and v₁y = 14.5 m/s to 02x =…

A: The components of the motorcycle's average acceleration are given…

Q: A bullet going 319 m/s strikes a 2.8-cm-thick target. What constant acceleration is required if the…

A:

Q: A 745i BMW car can brake to a stop in a distance of stopping distance of 231 (a) 60 mi/h to rest (b)…

A: Kinematics equation:The average acceleration of an object can be calculated using the following…

Q: A rock is dropped (from rest) from the top of a 73.9-m-tall building. How far above the ground is…

A:

Q: A swan on à lake gets airborne by flapping its wings and running on top of the water. a) If the swan…

A:

Q: The cheetah is considered the fastest running animal in the world. Cheetahs can accelerate to a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A woman drives a car from one city to another with different constant speeds along the trip. She…

A:

Q: A VW Beetle goes from 0 to 48.0 mi/h with an acceleration of +2.35 m/s². (a) How much time does it…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –