A physics student took a 4 hours car trip to visit a friend. In the first hour, he traveled 100 km at constant speed. In the two hours, he stopped after his car developed some trouble. In the last hour, he traveled 90 km.What was his average speed during a. first hour b. the last two hours c. the entire trip?

A physics student took a 4 hours car trip to visit a friend. In the first hour, he traveled 100 km at constant speed. In the two hours, he stopped after his car developed some trouble. In the last hour, he traveled 90 km.What was his average speed during a. first hour b. the last two hours c. the entire trip?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter1: Introduction: The Nature Of Science And Physics

Section: Chapter Questions

Problem 2PE: A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it...

See similar textbooks

Similar questions

A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/h speed limit?
The speed limit on some interstate highways is roughly 100 km/h. (a) What is this in meters per second? (b) How many miles per hour is this?
1. A car starts from rest and attains a speed of 50 m/s in 15 seconds. a. How far has the car travelled in 15 seconds? b. What is the speed of car if it travels 567 meters?
answer question 2.a.i quickly in 1 hours… thank you
Full formula Correct Correct Correct values answer, metric units inserted into rounded to the formula two decimal from the places word problem
A horse travels 65 km/hr with a distance of 5.98 km . a. How long does the horse travels? b. What is the new speed of the horse if he travels twice his time travelled?
A frustrated office worker throws his laptop out of his business's high- rise office building. The height, h, in meters of the laptop above the ground at t seconds can be modelled by h(t) = 125-5t². a. Determine the average rate of change between the third and fourth second of the laptop's flight. b. Estimate the rate at which the laptop hits the ground.
1. A man drives his Ford Territory down a straight road at 5.2km at 40kph then he ran out of gas. The man walked 2.5km farther to the nearest gas station in 30 minutes. What is the average velocity of the man from the time the car started to the time when the driver arrived at the gas station? O 12.2561kph O 22.5kph O 12.6923kph O 12.2222kph O Other:
a. Martin and Beatrice are brother and sister and go to the same school. Martin walks to school using a footpath, a distance of 900 m, and he walks at 1.5 m/s. Beatrice cycles to school along the roads, a distance of 1.5 km, and she cycles at 5 m/s. They both plan on arriving at school by 8.55 a.m. Who leaves home first and by how much?
A nerve impulse travels along a myelinated neuron at 66.5 m/s. a. What is this speed in mi/h? b. What is this speed in cm/ms?
I left my house at 7 AM, drove 1100 km and arrived in South Carolina at 6 PM. My speed at 3 PM was: A. unknown, there's not enough info B. 105 km/h, that's the speed limit C. 77 km/h D. 100 km/h
A car speeds past a stationary police officer while traveling 115 km/h. The officer immediately begins pursuit at a constant acceleration of 9.1 km/h/s, just as the driver passes her. A: How fast, in kilometers per hour, will the police officer be traveling at the time he catches up to the driver?