You've already chosen the best response. It's a vector because acceleration has both a direction and a magnitude. An example would be a car stopping at a rate of 10 m/s. In this example the direction of acceleration is opposite the direction of velocity (towards the trunk) and the magnitude is 10 m/s.Show full answer.ou've already chosen the best response. It's a vector because acceleration has both a direction and a magnitude. An example would be a car stopping at a rate of 10 m/s. In this example the direction of acceleration is opposite the direction of velocity (towards the trunk) and the magnitude is 10 m/s.
Even a goodfitting saddle can slide forward on a mulewhen conditions are right. In this case theaddition of a properly adjusted crupper orbritchen is needed to keep the saddle whereit belongs. At the same time, a mule with theright confirmation can cause a saddle toslide too far back and cause dry spots.
Leaf Diseases. Fungal diseases from various pathogens cause leaf spots, blotches and blisters on birch trees. Cylindrosporium and Septoria cause small spots with no borders and Colletotrichum causes larger brown spots with darker borders. Anthracnose diseases, caused by Marssonina and Discula pathogens, form angular blotches instead of round spots.