Question

4) A racing car has a uniform acceleration of 4 meter per second square. What distance will it cover in
10s after start?
5) Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the
other and back along the same straight path. Find the average speed of Usha


Please Help me, i'm confused. Please do it on a copy an send me it'll help

Answer 1

Answer:

4. 4 multiple 10s =40 .

5.90m in 30s , 180m in 60s.

Answer 2

Answer:

(4). 4×10=40

(5). distance=spee×time

180=Sx60

speed=3m/s