False! The ability to cause change is energy, not matter. <span />
Answer:
b)The haystack changes your momentum over a longer time
because:
We know that,
impulse = force x t = m (v2 - v1)
f = m (v2 - v1)/t
force will be less and u will likely to be safe. Momentum change will be the same in both the cases.
Answer:
1. it helps to change the direction.
2. it helps us to walk on ground.
3. it helps the vechils to break while moving.
4. helps in changing one form of enegry to another form. eg when we rub our hands we feel heat energy.
5. it opposites the force.
6. it helps us to change shape of objects.eg we roll the dough to make it roti.
7. it changes the state of body from rest motion.eg when we push any obj from inclined plane it moves.
i all know is just 7..