Problem 14
1
Here we do not know the direction of travel but we know the magnitude of travel= 4 m. The body will move along the F net F net = -3i+[ - 4sin50 i -4cos50j ]+[10cos35 i + 10sin35 j] = 2.13 i + 3.16j IFI = √ 2.13 2 + 3.16 2 = 3.81 So, work done=Fd= 3.81*4=15.24 Work done is +ve , so kinetic energy will increase.
description
PHYSICS
Transcript of Problem 14
![Page 1: Problem 14](https://reader036.fdocuments.in/reader036/viewer/2022081908/55cf8ff5550346703ba1ac77/html5/thumbnails/1.jpg)
Here we do not know the direction of travel but we know the magnitude of travel= 4 m.
The body will move along the Fnet
Fnet = -3i+[ - 4sin50 i -4cos50j ]+[10cos35 i + 10sin35 j]
= 2.13 i + 3.16j
IFI = √2.132+3.162= 3.81
So, work done=Fd= 3.81*4=15.24
Work done is +ve , so kinetic energy will increase.