a sportscar starting from rest accelerates uniformly at 2m/s squared . What is the speed after 10S?
v = a t = 20 m/s
To find the speed of the sportscar after 10 seconds, we can use the equation of motion:
v = u + at
Where:
v is the final velocity (speed) of the sportscar after 10 seconds,
u is the initial velocity (speed) of the sportscar (in this case, it starts from rest, so u = 0),
a is the acceleration of the sportscar (given as 2 m/s^2), and
t is the time taken (in this case, 10 seconds).
Plugging in the given values into the equation, we get:
v = 0 + (2 m/s^2) * (10 s)
Therefore, the speed of the sportscar after 10 seconds is:
v = 0 + 20 m/s
So, the speed of the sportscar after 10 seconds is 20 m/s.