Complete question:
A dragster starts from rest and accelerates at 35 m/s2 m / s 2 . How fast is it going after 7s.
Answer:
The final velocity of the dragster is 245 m/s.
Explanation:
Given;
acceleration of the dragster, a = 35 m/s²
initial velocity of the dragster, u = 0
time of motion, t = 7 s
the final velocity of the dragster after 7s is given by;
v = u + at
where;
v is the final velocity
u is the initial velocity
v = 0 + (35 x 7)
v = 245 m/s
Therefore, the final velocity of the dragster is 245 m/s.