Afia

A cyclist and her bicycle have a combined mass of 75 kg. She comes to a complete stop at the crest of 15 m high hill, then coast down the hill without pedalling. a) Calculate her speed at the bottom of the hill. b) Calculate her speed if she does not stop...

101

With the discovery of fire man stated cooking food which led the increase of a large variety of food items.

Priya has a piece of string 5/6 yard long. She cuts 3/5 of the piece of string for her craft. What is the length of the string left?

Lily receives 30 messages on her cell phone. Of those messages, 1/5 are picture messages and 7/8 of the remainder are text messages. How many text messages does she receive?

Sam makes some read rolls. He gives 2/5 of the bread rolls to his neighbor and 4/9 of the remainder to his cousin. He has 15 bread rolls left. How many bread rolls does Sam make?

1.What is the gravitational energy (relative to the unstretched surface of the trampoline) of the 20kg ball at its apex 2.0m above the trampoline? KE = GPE= mgh m g h = 20 x 10 x 2 Joules= 400 J The kinetic energy just before it hits the trampoline is equ...