A cart is moving toward the right and speeding up, as shown in the diagram below
ID: 1355252 • Letter: A
Question
A cart is moving toward the right and speeding up, as shown in the diagram below. Assume that the cart is already moving at t_1. If the positive direction is toward the right, what is the sign of force at t = 2s? No direction because the magnitude is zero; Left; Right; Not enough information to estimate.; A cart is moving toward the right and slowing down, as shown in the diagram below. Assume that the cart is already moving at t_1 and t_4. If the positive direction is toward the right, what is the sign of force at t = 2s? Right; Not enough information to estimate.; Left; No direction because the magnitude is zero.;Explanation / Answer
in question no. 7
postion is nonuniformly increases in regular time interval .
means velocity of the cart is increases , so force is act on the cart in right direction.
in question no. 8
postion is nonuniformly decreases in regular time interval .
means velocity of the cart is decreases , so force is act on the cart in left direction.