Answer : His acceleration is,
Explanation :
By the 1st equation of motion,
...........(1)
where,
v = final velocity = 0 m/s
u = initial velocity = 10 m/s
t = time = 3 s
a = acceleration = ?
Now put all the given values in the above equation 1, we get:
Therefore, his acceleration is,
Answer:
m = 9795.9 kg
Explanation:
v = 35 m/s
KE = 6,000,000 J
Plug those values into the following equation:
6,000,000 J = (1/2)(35^2)m
---> m = 9795.9 kg
a=(v-u)/t
a =(11-5)/3
a= 8/3
a= 2.6 m/s
the answer is B.twice as much