A car accelerates uniformly from rest at 5 ms^-2. Determine its speed after 10s

holybio8

10 years ago

I got number 50 right but dem dey mark me worng

DIVINE O

10 years ago

The selected answer is wrong:

GIVEN:

U=0

V=5

T=10

S=?

SPEED=?

SINCE SPEED=DISTANCE(S)/TIME(T)

TO FIND DISTANCE(S)=UT+1/2A(T)^2

=0*T+0.5*5*(10*10)

=0+0.5*500

=250m

hence, speed=250:10

=25.0ms

REF: laws of motion.