Instantaneous Acceleration in 2D Video Lessons

Video Thumbnail

Concept

Problem: A particle's trajectory is described by x =(12t3−2t2)m and y =(12t2−2t)m, where t is in s.Part B What is the particle's speed at t=5.0s ? Express your answer using two significant figures. v = m/s

FREE Expert Solution

Velocity:

v=vx2+vy2

The x-component of velocity, vx

vx=dxdt=ddt(12t3-2t2)

vx = 36t2 - 4t

The y-component of velocity, vy

vy=dydt=ddt(12t2-2t)

vy = 24t - 2

86% (266 ratings)
View Complete Written Solution
Problem Details

A particle's trajectory is described by x =(12t3−2t2)m and y =(12t2−2t)m, where t is in s.

Part B What is the particle's speed at t=5.0s ? Express your answer using two significant figures. v = m/s

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Instantaneous Acceleration in 2D concept. You can view video lessons to learn Instantaneous Acceleration in 2D. Or if you need more Instantaneous Acceleration in 2D practice, you can also practice Instantaneous Acceleration in 2D practice problems.