Question about Dynamics: friction force
Subject Physics
Physics
Source Originais Teachy
Originais Teachy
Topic Dynamics: friction force
Dynamics: friction force
Difficulty Medium
Medium
(Originais Teachy 2023) - Question Medium of Physics
When passing over a bridge, a car gradually reduces its speed until it stops. What is the direction of the kinetic friction force in this case?a.
In the opposite direction of the car's velocity.
b.
In the same direction as the gravitational force.
c.
In the same direction as the car's velocity.
d.
In the direction of the relative motion between the car and the bridge.
e.
In the direction of the gravitational force.
Answer sheet:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices. Sed non sem ultricies, sollicitudin sem facilisis, commodo justo. Maecenas mattis sodales nunc, et auctor massa fermentum a. Maecenas eget nisl felis.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.
Answer sheet
You need to be a registered teacher to view the answer sheet
IARA TIP
Are you putting together a test or exercise list?
On Teachy’s platform, you can automatically generate these materials without spending hours searching for questions 😉
Those who viewed this question also liked...
Question
Question
Difficulty Medium
Source:
UNICESUMAR
Geometric Optics: Camera Obscura
Difficulty Medium
Question
Question
Difficulty Easy
Source:
Teachy
An isovolumetric transformation is a chemical process in which the volume of a system is kept constant. In this process, the internal energy of the system can be changed through the transfer of heat between the system and the external environment. Which of the following statements is correct?
Thermodynamics: Gaseous Transformations
Difficulty Easy
Question
Question
Difficulty Very Easy
Source:
Teachy
An airplane initially flies north at a speed of 200 km/h. Due to a wind blowing from east to west, the airplane ends up deviating to the northeast, following a trajectory that forms a 45-degree angle with the north direction and covering a distance of 300 km from the starting point. Determine, using vector concepts, the speed of the airplane relative to the ground, considering the effect of the wind. Consider that the wind speed is constant and equal to 50 km/h, and that the wind direction is perpendicular to the initial direction of the airplane.
Vectors: Addition
Difficulty Very Easy
Question
Question
Difficulty Hard
Source:
Teachy
The prefix table is used to represent physical quantities more accurately. For example, we can use the prefix 'deci' to represent 0.1 times the unit. If we have 1 decimeter, that means 0.1 meters. Which of the prefixes below means 0.000001 times the unit?
System Prefixes
Difficulty Hard
Join a community of teachers directly on WhatsApp
Connect with other teachers, receive and share materials, tips, training, and much more!
We reinvent teachers' lives with artificial intelligence
Materials
2023 - All rights reserved