A driver is initially traveling 21.1m/s to the right and then slams on the brakes to accelerate at a magnitude of 4.5m/s/s until she comes to a complete stop.  If she started applying her brakes at a position of 263m from zero, then where is her final position from zero?

Q: If a driver is initially going 24.9m/s to the right and then slams on the brakes to accelerate at a…

A:

Q: A tourist being chased by an angry bear is running in a straight line toward his car at a speed of…

A:

Q: You are driving your car, and the traffic light ahead turns red. You apply the breaks for 2.93s, and…

A: Given data: Time taken (t) = 2.93 s Final velocity (v) = +5.33 m/s Acceleration (a) = -2.98 m/s2…

Q: a test rocket is fired straight up from the rest. the net acceleration is 20 m/s upward and…

A: Velocity when the rocket ceases firing v=u+anett=anett    u=0=20 m/s24.0 s≈80 m/s

Q: A cab driver heads south with a steady speed of v₁ 20.0 m/s for t₁ = 3.00 min, then makes a right…

A: moving south with velocity v1=20 m/s for t1=3.0 minthen turn right and moving with v2=25 m/s for…

Q: The brakes are applied to a moving car, causing it to uniformly slow down. While slowing, it moves a…

A: Distance travelled (S) = 40.0 mFinal velocity (v) = 2.05 m/s Time (t) = 7.00 s

Q: While standing on a bridge 16.8 m above the ground, you drop a stone from rest. When the stone has…

A: height of the bridge (h) = 16.8 m distance fallen by the first stone = 3.30 m

Q: A bus driver heads south with a steady speed of v₁ = 24.0 m/s for t₁ = 3.00 min, then makes a right…

A:

Q: isitive physics student and mountain climber climbs a 49.0-m-high cliff that overhangs a calm pool…

A:

Q: Driving down the road at a speed of 30.1 m/s, you suddenly notice a fallen tree blocking the road a…

A: Given in question -  Speed(v) = 30.1 m/s Distance(D) = 78.5m Distance before tree(d) = 7.1 m To find…

Q: A chauffeur heads south with a steady speed of v₁ = 22.0 m/s for t₁ = 3.00 min, then makes a right…

A: This problem is based on vector calculus addition where we have to find displacement, speed, and…

Q: A driver is traveling 18.0 m/s when she sees a red light ahead. Her car is capable of decelerating…

A: Given u=18m/s (initial velocity of car) t1=0.380 s (time for driver to hit the brakes) Distance…

Q: Wags decides to go on another adventure. He begins by traveling east for 100m. He then moves 75 m in…

A: Given data,  Distance travelled towards East = 100m Distance travelled towards west =75 m With…

Q: A thief is trying to escape from a parking garage after completing a robbery, and the thief's car is…

A: Given Data : The speed of the thief's car is given as v = 12 ms. The distance of the thief's car…

Q: An inquisitive physics student and mountain climber climbs a 51.0-m-high cliff that overhangs a calm…

A: a) We know that the second equation of the motion is given as The time to  release of the first…

Q: A cyclist due east accelerates at a constant 3.5.0m/s2 after leaving a sign-post. At the time, t=0…

A:

Q: A single-engine air plain starts its engine at one end of the runway. It accelerates at a constant…

A: Given, velocity v=38 m/s time t=20 s

Q: What is the magnitude of the initial velocity?

A: In projectile motion, the projectile’s horizontal velocity does not change throughout the motion.…

Q: You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock…

A: Step 1: Step 2: Step 3: Step 4:

Q: You are standing on a circular track that is 315 m long. You begin jogging at the start line and…

A: given : (a) length of track l=315 m (b) distance travelled by sprinter d = 200m time taken t=21.75 s

Q: A test rocket is fired straight up from rest. The net acceleration is 20 m/s2 upward and continues…

A: Net acceleration ( a ) = 20 m/s² Time ( t ) = 4.0 s

Q: In a 25 storey building, the elevator starting from rest at first floor is accelerated at 0.8m/sec2…

A: The acceleration(a) is 0.8 m/sec2.The time (t1) is 5 sec.The time t2 is 10 sec.The time t3 is 3…

Q: The height of a helicopter above the ground is given by h = 2.90t3, where h is in meters and t is in…

A: The height of a helicopter above the ground, h = 2.90t³ t = 1.60 s Time taken to fall back to Ground…

Q: If a driver is initially going 35.5m/s to the left and then slams on the brakes to accelerate at a…

A: SOlution: Given that initial velocity u = 35.5 m/s acceleration  = 3.8 m/s2

Q: While standing on a bridge 16.8 m above the ground, you drop a stone from rest. When the stone has…

A: See below

Q: magnitude and direction of the bird’s acceleration

A:

Q: Mature salmon swim upstream, returning to spawn at their birthplace. During the arduous trip they…

A: Given that   h= 3.31 m what minimum speed (in m/s)

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.