Walking across campus on a windy day, floyd fluids speculates about using an umbrella to ‘sail’ his bicycle across campus. the frontal area of the bike and rider is 0.3 m2 and they have a drag coefficient of about 1.2. assume the rolling friction coefficient is 0.05 and the combined mass of bike and rider is 85 kg. floyd’s umbrella is 1.22 m in diameter, and the wind is blowing at 24 km/hr.

statement #3 on andre"s list is false.

at right angles to each other

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.

80cm/s.

24cm/s.

53.3cm/s.