You fire a bullet of inertia m into the block as shown in the figure below. The bullet is initially traveling at speed v and the inertia of the block is 4m. The surface on which the block sits is rough, and the spring constant is k. The bullet becomes embedded in the block. If the spring compresses a maximum distance d, what is the magnitude of the frictional force exerted by the surface on the block while the block is moving? 4m k m You fire a bullet of inertia m into the block as shown in the figure below. The bullet is initially traveling at speed v and the inertia of the block is 4m. The surface on which the block sits is rough, and the spring constant is k. The bullet becomes embedded in the block. If the spring compresses a maximum distance d, what is the magnitude of the frictional force exerted by the surface on the block while the block is moving? 4m k m You fire a bullet of inertia m into the block as shown in the figure below. The bullet is initially traveling at speed v and the inertia of the block is 4m. The surface on which the block sits is rough, and the spring constant is k. The bullet becomes embedded in the block. If the spring compresses a maximum distance d, what is the magnitude of the frictional force exerted by the surface on the block while the block is moving? 4m k m