Question

pls give 5,6,7 answer

Answer 1

5. v=0
a=2.5 m/s^2
t=10 s
v=u+at
0=u-2.5*10
0=u-25
u=0+25
u=25 m/s
Initial velocity is 25 m/s.
7. u=5 m/s
a=0.2 m/s^2
t=10 s
v=u+at
=5+0.2*10
=5+2
=7 m/s
The speed after 10 seconds is 7 m/s.
6. The body is moving with uniform acceleration.
a=10 m/s^2
u=0
t=2 s
S=ut+1/2at^2
=0*2+1/2*10*2*2
=0+20
=20 m