Answer:
JA
Explanation:
s of time, (b) the velocity and acceleration at t = 2.0 s, (c) the time at which the position is a maximum, (d) the time at which the velocity is zero, and (e) the maximum position. Assume all variable and constants are in SI units.
Answer:
V = 52
Explanation:
Plug in the numbers:
If v = u + at
it is...
v = 24 + 7(4) = 24 + 28 = 52
Answer:
The first part is right (KE is conserved in an elastic collision).
The second part of the statement is false,.
Since momentum is conserved, let moving mass m strike stationary mass M:
m v = (m + M) V where m v is the momentum in
Obviously, v does not equal V.
Answer:
a) 12m/s b) 720m
Explanation:
Use SUVAT:
a) u=0 a= 0.1 t= 2mins = 120 seconds v=?
v=u+at
v= 0 +(0.1*120)
v=12m/s
b) s=? u=0 a=0.1 t=120
s=ut+1/2at^2
s=0*120+1/2*0.1*120^2
s=720m
