You are walking to your physics class at speed 1.0m/s with respect to the ground. Your friend leaves 2.0 min after you and is walking at speed 1.3m/s in the same direction. How fast is she walking with respect to you? How far does your friend travel before she catches up with you? Indicate the uncertainty in your answers. Describe any assumptions that you made

Q: A1). Suppose an object is moving in a straight line, and the object's position (in meters) after t…

A: The object's position after t seconds is given by: s(t)=5t2+7 Here, s is in meters.

Q: you are walking at the same speed of 1.17 m/s.1.17 m/s. Suddenly, you notice a wallet on the ground.…

A:

Q: I looked at the motion diagram and thought it was representing an object accelerating to the right…

A: Given, A motion diagram represnting an object accelerating to the right . So , net force must be…

Q: PROBLEMS 11.1+ Speed addition. Darnell stands in a railroad coach that moves at speedc relative to…

A: We will answer this question using formula for adding relativistic velocities. The steps are as…

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: On the apollo 14 mission to the moon, astronaut Alan Shepard hit a golf club improvised from a tool.…

A: Initial speed (v) = 25 msLaunch angle (θ) = 26o

Q: An object is moving east at 15 m/s and another object Is moving south at 15 m/s. Which of the…

A: One object is moving towards east with speed 15 m/s and other is moving towards south with speed 15…

Q: 80p 60

A: Slope of velocity time graph represent acceleration.

Q: An object is released from rest by someone standing on a bridge. The object falls without hitting…

A: Time taken, t = 2.1 sInitial velocity, u = 0Acceleration due to gravity, g = 10 m/s²Final velocity,…

Q: A car rounds the clover-leaf at 13 "/s as it enters the 400 meter-long merge zone. a) What…

A: Answer:-  + 0.990 m/s2 Given  Initial velocity (u) = 13 m/s  Final Velocity (V) = 31 m/s  Distance…

Q: A car moves along a straight road. It moves at a speed of 50 km/hr for 4 minutes, then during the…

A: This question belongs to kinematics.

Q: The motion of a cart can be represented by x (t) = (-2,5m/s)t – 10.0m. At what time does this cart…

A: Given that:The motion of cart is represented by the equationxt=-2.5 m/st-10m

Q: A car that is moving at 72.0 km·hr−1 slows down uniformly to a speed of 36.0 km·hr−1 in 5.00 s. a)…

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Q: To help travelers get around the airport, a shuttle was built between two terminals. Starting from…

A: Given data: The acceleration of the shuttle for t1 time, a1=0.447 m/s2. The time interval during…

Q: Two identical discs are spinning on a vertical rod, at different rotation rates. The bottom disc is…

A: Given; Angular rotation rate of top disc = 8500 rev/s Angular rotation rate of bottom disc = 4700…

Q: 1. What is the average speed of the object from 15-40s7 2. At which time frame did the object not…

A:

Q: Task 2: Average speed and average velocity A car travels a distance of 450 km in a straight line for…

A: Answer= Task 2:  a) Average speed is defined as the total distance, d, covered divided by the time…

Q: Two cars are initially (2.50+C) km apart on a straight road. If the cars are moving toward each…

A: The initial distance be given as (2.50 +C), substituting the value of C on it,…

Q: An airplane decelerates at a constant rate of 4.63 m/s² when it land runway of an airport. For a…

A: Given: De-acceleration of airplane, a=-4.63 m/s2 Time duration, t=15.8 s Distance, s=1378 m

Q: Lisa in her Lamborghini accelerates at the rate of (3.401-4.20j) m/s², while Jill in her Jaguar…

A: Given, Acceleration of Lisa aL=3.40 i^-4.20 j^ m/s2 Acceleration of Jill aJ=2.20 i^+2.60 j^ m/s2…

Q: Imagine a toy car on a track with two hills (see Figure 1). As the car rolls down the track, its…

A: Let us suppose for convenience that the mass of the car is m=1 kg. We want to calculate the…

Q: A rock is kicked honzontally at a speed of 10 m/s from the edge of a dift The rock strnkes the…

A: Formula of range of projectile thrown horizontally from the height H is as follows: R=uT…

Q: An electron, in a picture tube of a TV set, travelling in a straight line, accelerates uniformly…

A: Given data:  Initial speed (v0) = 4.0 × 104 m/s Final speed (v) = 9.0 × 106 m/s Distance traveled…

Q: Romeo lives in a bachelor apartment. Juliet lives in her own bachelorette apartment a floor below.…

A:

Q: 7. A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 20.0m…

A: Given bowling lane length l=20.0m T=2.50s vs=340m/s

Q: A car traveling in a straight line with an initial velocity of 8.8m/s accelerates at a rate of…

A: Given:      Initial velocity, u = 8.8 m/s     Final velocity, v = 23.8 m/s     Acceleration, a = 3…

Q: Two trains travel on parallel tracks in the same direction. The first train has a length of 100m and…

A: Given, length of the first train is L1=100m the velocity of the first train is v1=200kph=55.556m/s…

Q: You are sitting in your car at a red light when you see a zombie standing still 65m in front of your…

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Q: 3. A particle moves according to r(t) = (1 + t) i+ (3t – 2) j+ (2 - 41) k. Find its velocity and…

A:

Q: Tim and Rick both can run at speed , and walk at speed vw, with v. > vw. They set off together on a…

A: (A) Time taken by Rick = time for distance covered with speed Vr + time for distance covered with…

Q: A bunch of keys was thrown directly upward by Macoy, who is looking out of the window, to be caught…

A: As per student's request I am answering parts c. and d. only. Given : Initial velocity (vo) = 3 m/s…

Q: 1. A football player runs 15 meters to the left and it takes 4 seconds. Determine his average speed.…

A: Here, distance d = 15 meters time t = 4 seconds

Q: 50 40 30- 20 10- -10 10 20 30 10 Danny is a lifeguard and spots a drowning child 30 meters along the…

A:

Q: A train leaves the train station at 11:30 am. It travels at a speed of 9 mph. Another train leaves…

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Q: A bird rests on a branch in an aok tree, 12 m above the grassland, as it watches it's young birds.…

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Q: Light travels at a constant speed of 3.003.00 × 10108 m/s, whereas sound travels through the air at…

A: Speed of light (v) = 3×108 m/s Speed of sound in air (v') = 343 m/s

Q: An electron with an initial speed of 4.56x10^5m/s enters a linear particle accelerator that is 3.50…

A:

Q: will someone please help me with this physics questions? Part A: draw a detailed motion diagram to…

A: A. options wrongB. 5th option correct, 11.76m/sC. 2nd option correct, 7.056mExplanation:Step 1:A).…

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.