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hyunxu:
6 s??
hmm 6sec
Answers
Answered by
1
F=ma
-50=20*a
a=v-u/t
-50=20*0-15/t
-5/2=-15t
t=1/6sec
-50=20*a
a=v-u/t
-50=20*0-15/t
-5/2=-15t
t=1/6sec
it's answer is 6sec not 1 Apon 6sec
but
thnx
Answered by
1
HOLA!!
GIVEN
f = 50N
since it's regarding force
f = - 50N
m = 20kg
u = 15m/s
they asked the time at which it stopped so it's Finn velocity must be 0
v= 0
t= ?
SOLUTION
we know that
f = ma
f = m (v-u)/t
t = m (v-u) / f
t = mv -mu/ f
= 20 (0) - 20 (15)
= - 300/ -50
= 6s
t = 6s
Hope it's helpful
GIVEN
f = 50N
since it's regarding force
f = - 50N
m = 20kg
u = 15m/s
they asked the time at which it stopped so it's Finn velocity must be 0
v= 0
t= ?
SOLUTION
we know that
f = ma
f = m (v-u)/t
t = m (v-u) / f
t = mv -mu/ f
= 20 (0) - 20 (15)
= - 300/ -50
= 6s
t = 6s
Hope it's helpful
yes
helpful
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