A body is rotating in a horizontal circle of radius 2.5m with an angular speed of 5 rad s-1. Calculate the magnitude of the radial acceleration of the body

elviso

10 years ago

a=rw^2 = 2.5*(5)^2 = 2.5*25 = 62.5m/s^2

Nnaaaaa

7 years ago

The answer is wrong including the working

A=V²/r =5²/2.5=25/2.5=10

Indigenous20

4 years ago

Wrong. The answer is A. a = w^2 x r = 5^2 x 2.5 = 62.5

Anzyumoh

3 years ago

v=rw, where r=2.5m, w=angular velocity=5rads/s.
using a =v²/r
but v=rw,=2.5x5,=12.5
v²=(12.5)²,=156.25
so a =156.25/2.5
a=62.5m/s².
A is correct

AbdulRahman23

4 years ago

d answer is d

joo.py

6 days ago

BRO PLS CORRECT THE OPTION

Atiyeye

10 years ago

@myschool, dis unfair o... Why are you supplying wrong workings to questions na? I think d management has a lot of work to do concerning errors in works and calculations. You can't just give us anything like that and expect us to swallow it o! We are students, and our ability to question anything qualifies us students. The correct option is D nw! I like d management to find sth to do about dis issue. I've come across a lot of mistakes in ur workings, bt I still give kudos to u ppl, coz u really trying alot on us students too. Bt, pls help us out.

AJMJBG

1 year ago

it is supposed to be 5^2 instead of just 5 Therefore the answer is 62.5

Newton2i

2 years ago

have never seen this type of this rubbish calculation that my school provided ahh nawa oo

CONSISTENCY

10 years ago

The selected answer is wrong:

the correct answer is d in number 50