only 3 question plz and this question
Attachments:
Answers
Answered by
1
3. u=10m/s
a=5m/s2
s=30m
V=?
solution:
using 3rd equation of motion
V2 -u2 =2as
V2- (10)2=2x5x30
V2 =2x5x30/10x10
V2-100=300
V2=300+100
V2=400
V =200
t=?
solution:
using 1 equation of motion:
V=u + at
V-u/a=t
200-10/5=t
190/5=t
t=38 s
a=5m/s2
s=30m
V=?
solution:
using 3rd equation of motion
V2 -u2 =2as
V2- (10)2=2x5x30
V2 =2x5x30/10x10
V2-100=300
V2=300+100
V2=400
V =200
t=?
solution:
using 1 equation of motion:
V=u + at
V-u/a=t
200-10/5=t
190/5=t
t=38 s
Similar questions