Answer:
distance =s
time=t
speed=v
initial velocity = u
acceleration=a
force=f&
mass=m
1. s=12.6m, t=4.5s, v=?
v=s/t
v=12.6/4.5
v=2.8m/s
2. s=250m, t=110s, v=?
v=s/t
v=250/110
v=2.27m/s
3. t=2.3s, s=26m, v=?
v=s/t
v=26/2.3
v= 11.3m/s
4. u=0m/s, v=0.12m/s, t=0.1s, a=?
using
a=v-u/t
a=0.12-0/0.1
a=1.2m/s^2
5. direction
6. speed
7. velocity
8. average
9. u= 18m/s, v=26m/s, t=15s
using
a=v-u/t
a=26-18/15
a=0.53m/s^2
10. instantaneous
11. u=75m/s, v=115m/s, t=25s, a=?
using
a=v-u/t
a= 115-75/25
a=1.6m/s^2
12. a=?. m= 4.0kg, f= 26N
using
a=f/m
a= 26/4
a= 6.5m/s^2
