- #1

Malaya

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## Homework Statement

To measure the acceleration due to gravity on a distant planet, an astronaut hangs a 0.060-kg ball from the end of a wire. The wire has a length of 1.5 m and a linear density of 3.1 multiplied by 10-4 kg/m. Using electronic equipment, the astronaut measures the time for a transverse pulse to travel the length of the wire and obtains a value of 0.098 s. The mass of the wire is negligible compared to the mass of the ball. Determine the acceleration due to gravity.

m=.06 kg

l=1.5m

linear density= 3.1 multiplied by 10-4 kg/m

t(time)=0.098 s

a=?

## Homework Equations

v=d/t

v=√ F/linear density

F=ma

## The Attempt at a Solution

v=dt

v=1.5 x .098

v=.147

v=√ F/linear density

.147=√ F/3.1 multiplied by 10-4 kg/m

.0216=F/3.1 multiplied by 10-4 kg/m

.0216 x 3.1 multiplied by 10-4 kg/m=F

F= 6.699e-6

F=ma

6.699e-6=.06 kg x a

a=1.12e-4

my answer was WRONG!

Why??